155572896 has 24 divisors (see below), whose sum is σ = 408379104. Its totient is φ = 51857600.

The previous prime is 155572889. The next prime is 155572903. The reversal of 155572896 is 698275551.

It is a happy number.

155572896 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (155572889) and next prime (155572903).

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810180 + ... + 810371.

It is an arithmetic number, because the mean of its divisors is an integer number (17015796).

Almost surely, 2^155572896 is an apocalyptic number.

155572896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155572896 is an abundant number, since it is smaller than the sum of its proper divisors (252806208).

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

155572896 is a wasteful number, since it uses less digits than its factorization.

155572896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620564 (or 1620556 counting only the distinct ones).

The product of its digits is 756000, while the sum is 48.

The square root of 155572896 is about 12472.8864341819. The cubic root of 155572896 is about 537.8295319108.

The spelling of 155572896 in words is "one hundred fifty-five million, five hundred seventy-two thousand, eight hundred ninety-six".