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53957980605 = 3589109523709
BaseRepresentation
bin110010010000001001…
…010111000110111101
312011021102110102022010
4302100021113012331
51341001220334410
640442110441433
73620062160544
oct622011270675
9164242412263
1053957980605
1120979967501
12a55a503279
13511ba6b699
14287c26715b
15160c0b9c20
hexc902571bd

53957980605 has 64 divisors (see below), whose sum is σ = 88396704000. Its totient is φ = 28099602432.

The previous prime is 53957980591. The next prime is 53957980619. The reversal of 53957980605 is 50608975935.

It is an interprime number because it is at equal distance from previous prime (53957980591) and next prime (53957980619).

It is not a de Polignac number, because 53957980605 - 227 = 53823762877 is a prime.

It is a super-2 number, since 2×539579806052 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 76103991 + ... + 76104699.

It is an arithmetic number, because the mean of its divisors is an integer number (1381198500).

Almost surely, 253957980605 is an apocalyptic number.

It is an amenable number.

53957980605 is a deficient number, since it is larger than the sum of its proper divisors (34438723395).

53957980605 is a wasteful number, since it uses less digits than its factorization.

53957980605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438.

The product of its (nonzero) digits is 10206000, while the sum is 57.

The spelling of 53957980605 in words is "fifty-three billion, nine hundred fifty-seven million, nine hundred eighty thousand, six hundred five".

Divisors: 1 3 5 15 89 109 267 327 445 523 545 709 1335 1569 1635 2127 2615 3545 7845 9701 10635 29103 46547 48505 57007 63101 77281 139641 145515 171021 189303 231843 232735 285035 315505 370807 386405 698205 855105 946515 1112421 1159215 1854035 5073623 5562105 6878009 15220869 20634027 25368115 33001823 34390045 40417963 76104345 99005469 103170135 121253889 165009115 202089815 495027345 606269445 3597198707 10791596121 17985993535 53957980605