155055572 has 24 divisors (see below), whose sum is σ = 328353984. Its totient is φ = 62543232.

The previous prime is 155055557. The next prime is 155055613. The reversal of 155055572 is 275550551.

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 7 ways as a sum of consecutive naturals, for example, 162398 + ... + 163349.

It is an arithmetic number, because the mean of its divisors is an integer number (13681416).

Almost surely, 2^155055572 is an apocalyptic number.

It is an amenable number.

155055572 is an abundant number, since it is smaller than the sum of its proper divisors (173298412).

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

155055572 is a wasteful number, since it uses less digits than its factorization.

155055572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325775 (or 325773 counting only the distinct ones).

The product of its (nonzero) digits is 43750, while the sum is 35.

The square root of 155055572 is about 12452.1312232083. The cubic root of 155055572 is about 537.2327246623.

The spelling of 155055572 in words is "one hundred fifty-five million, fifty-five thousand, five hundred seventy-two".