157972056 has 32 divisors (see below), whose sum is σ = 430833600. Its totient is φ = 47870240.

The previous prime is 157972051. The next prime is 157972081. The reversal of 157972056 is 650279751.

157972056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 157971999 and 157972017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157972051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298926 + ... + 299453.

It is an arithmetic number, because the mean of its divisors is an integer number (13463550).

Almost surely, 2^157972056 is an apocalyptic number.

It is an amenable number.

157972056 is an abundant number, since it is smaller than the sum of its proper divisors (272861544).

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

157972056 is a wasteful number, since it uses less digits than its factorization.

157972056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598399 (or 598395 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 42.

The square root of 157972056 is about 12568.6934881872. The cubic root of 157972056 is about 540.5801446786.

The spelling of 157972056 in words is "one hundred fifty-seven million, nine hundred seventy-two thousand, fifty-six".