155872056 has 64 divisors (see below), whose sum is σ = 397440000. Its totient is φ = 50933376.

The previous prime is 155872049. The next prime is 155872109. The reversal of 155872056 is 650278551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434005 + ... + 434363.

It is an arithmetic number, because the mean of its divisors is an integer number (6210000).

Almost surely, 2^155872056 is an apocalyptic number.

It is an amenable number.

155872056 is an abundant number, since it is smaller than the sum of its proper divisors (241567944).

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

155872056 is a wasteful number, since it uses less digits than its factorization.

155872056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 39.

The square root of 155872056 is about 12484.8730870602. The cubic root of 155872056 is about 538.1740522058.

The spelling of 155872056 in words is "one hundred fifty-five million, eight hundred seventy-two thousand, fifty-six".