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55131795 = 3253139521
BaseRepresentation
bin1101001001001…
…1111010010011
310211201222121100
43102103322103
5103103204140
65245355443
71236420045
oct322237223
9124658540
1055131795
1129136374
1216568b83
13b564184
147471a95
154c90530
hex3493e93

55131795 has 24 divisors (see below), whose sum is σ = 98646912. Its totient is φ = 28454400.

The previous prime is 55131779. The next prime is 55131823. The reversal of 55131795 is 59713155.

55131795 is a `hidden beast` number, since 551 + 3 + 17 + 95 = 666.

It is not a de Polignac number, because 55131795 - 24 = 55131779 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18366 + ... + 21155.

It is an arithmetic number, because the mean of its divisors is an integer number (4110288).

Almost surely, 255131795 is an apocalyptic number.

55131795 is a deficient number, since it is larger than the sum of its proper divisors (43515117).

55131795 is a wasteful number, since it uses less digits than its factorization.

55131795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39563 (or 39560 counting only the distinct ones).

The product of its digits is 23625, while the sum is 36.

The square root of 55131795 is about 7425.0787874608. The cubic root of 55131795 is about 380.5987674739.

The spelling of 55131795 in words is "fifty-five million, one hundred thirty-one thousand, seven hundred ninety-five".

Divisors: 1 3 5 9 15 31 45 93 155 279 465 1395 39521 118563 197605 355689 592815 1225151 1778445 3675453 6125755 11026359 18377265 55131795