57157536 has 48 divisors (see below), whose sum is σ = 158868864. Its totient is φ = 17931264.

The previous prime is 57157523. The next prime is 57157537. The reversal of 57157536 is 63575175.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 57157494 and 57157503.

It is not an unprimeable number, because it can be changed into a prime (57157537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15880 + ... + 19143.

It is an arithmetic number, because the mean of its divisors is an integer number (3309768).

Almost surely, 2^57157536 is an apocalyptic number.

It is an amenable number.

57157536 is an abundant number, since it is smaller than the sum of its proper divisors (101711328).

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

57157536 is a wasteful number, since it uses less digits than its factorization.

57157536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35053 (or 35045 counting only the distinct ones).

The product of its digits is 110250, while the sum is 39.

The square root of 57157536 is about 7560.2603129786. The cubic root of 57157536 is about 385.2043352266.

The spelling of 57157536 in words is "fifty-seven million, one hundred fifty-seven thousand, five hundred thirty-six".