155056556 has 12 divisors (see below), whose sum is σ = 271970160. Its totient is φ = 77350800.

The previous prime is 155056519. The next prime is 155056579. The reversal of 155056556 is 655650551.

155056556 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×155056556² = 48085071117162272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42395 + ... + 45906.

It is an arithmetic number, because the mean of its divisors is an integer number (22664180).

Almost surely, 2^155056556 is an apocalyptic number.

It is an amenable number.

155056556 is a deficient number, since it is larger than the sum of its proper divisors (116913604).

155056556 is a wasteful number, since it uses less digits than its factorization.

155056556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88744 (or 88742 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 38.

The square root of 155056556 is about 12452.1707344543. The cubic root of 155056556 is about 537.2338611062.

The spelling of 155056556 in words is "one hundred fifty-five million, fifty-six thousand, five hundred fifty-six".