155056756 has 12 divisors (see below), whose sum is σ = 272432160. Its totient is φ = 77219000.

The previous prime is 155056723. The next prime is 155056771. The reversal of 155056756 is 657650551.

It is a congruent number.

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, 76216 + ... + 78223.

It is an arithmetic number, because the mean of its divisors is an integer number (22702680).

Almost surely, 2^155056756 is an apocalyptic number.

It is an amenable number.

155056756 is a deficient number, since it is larger than the sum of its proper divisors (117375404).

155056756 is a wasteful number, since it uses less digits than its factorization.

155056756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154694 (or 154692 counting only the distinct ones).

The product of its (nonzero) digits is 157500, while the sum is 40.

The square root of 155056756 is about 12452.1787651800. The cubic root of 155056756 is about 537.2340920901.

The spelling of 155056756 in words is "one hundred fifty-five million, fifty-six thousand, seven hundred fifty-six".