155612256 has 24 divisors (see below), whose sum is σ = 408482424. Its totient is φ = 51870720.

The previous prime is 155612239. The next prime is 155612279. The reversal of 155612256 is 652216551.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 810385 + ... + 810576.

It is an arithmetic number, because the mean of its divisors is an integer number (17020101).

Almost surely, 2^155612256 is an apocalyptic number.

155612256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155612256 is an abundant number, since it is smaller than the sum of its proper divisors (252870168).

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

155612256 is a wasteful number, since it uses less digits than its factorization.

155612256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620974 (or 1620966 counting only the distinct ones).

The product of its digits is 18000, while the sum is 33.

The square root of 155612256 is about 12474.4641568285. The cubic root of 155612256 is about 537.8748851094.

The spelling of 155612256 in words is "one hundred fifty-five million, six hundred twelve thousand, two hundred fifty-six".