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53165497 = 711292821
BaseRepresentation
bin1100101011001…
…1110110111001
310201001002100111
43022303312321
5102102243442
65135304321
71213620310
oct312636671
9121032314
1053165497
1128013030
121597b0a1
13b026198
1470bd277
154a02b17
hex32b3db9

53165497 has 24 divisors (see below), whose sum is σ = 68732352. Its totient is φ = 39950400.

The previous prime is 53165473. The next prime is 53165503. The reversal of 53165497 is 79456135.

It is a de Polignac number, because none of the positive numbers 2k-53165497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53165417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64347 + ... + 65167.

It is an arithmetic number, because the mean of its divisors is an integer number (2863848).

Almost surely, 253165497 is an apocalyptic number.

It is an amenable number.

53165497 is a deficient number, since it is larger than the sum of its proper divisors (15566855).

53165497 is a wasteful number, since it uses less digits than its factorization.

53165497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 868 counting only the distinct ones).

The product of its digits is 113400, while the sum is 40.

The square root of 53165497 is about 7291.4674106108. The cubic root of 53165497 is about 376.0191465465.

The spelling of 53165497 in words is "fifty-three million, one hundred sixty-five thousand, four hundred ninety-seven".

Divisors: 1 7 11 29 77 203 319 821 841 2233 5747 5887 9031 9251 23809 63217 64757 166663 261899 690461 1833293 4833227 7595071 53165497