156515056 has 40 divisors (see below), whose sum is σ = 322479360. Its totient is φ = 73334784.

The previous prime is 156515053. The next prime is 156515077. The reversal of 156515056 is 650515651.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156515053) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 68785 + ... + 71023.

It is an arithmetic number, because the mean of its divisors is an integer number (8061984).

Almost surely, 2^156515056 is an apocalyptic number.

156515056 is a gapful number since it is divisible by the number (16) 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 156515056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161239680).

156515056 is an abundant number, since it is smaller than the sum of its proper divisors (165964304).

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

156515056 is a wasteful number, since it uses less digits than its factorization.

156515056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521 (or 2515 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 156515056 is about 12510.5977475099. The cubic root of 156515056 is about 538.9130582390.

The spelling of 156515056 in words is "one hundred fifty-six million, five hundred fifteen thousand, fifty-six".