53515896 has 64 divisors (see below), whose sum is σ = 154310400. Its totient is φ = 15149568.

The previous prime is 53515879. The next prime is 53515901. The reversal of 53515896 is 69851535.

It is a super-2 number, since 2×53515896² = 5727902249365632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17575 + ... + 20393.

It is an arithmetic number, because the mean of its divisors is an integer number (2411100).

Almost surely, 2^53515896 is an apocalyptic number.

53515896 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53515896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77155200).

53515896 is an abundant number, since it is smaller than the sum of its proper divisors (100794504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53515896 is a wasteful number, since it uses less digits than its factorization.

53515896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2948 (or 2944 counting only the distinct ones).

The product of its digits is 162000, while the sum is 42.

The square root of 53515896 is about 7315.4559666503. The cubic root of 53515896 is about 376.8434175383.

The spelling of 53515896 in words is "fifty-three million, five hundred fifteen thousand, eight hundred ninety-six".