155315052 has 36 divisors (see below), whose sum is σ = 402181416. Its totient is φ = 50508480.

The previous prime is 155315033. The next prime is 155315099. The reversal of 155315052 is 250513551.

155315052 is a `hidden beast` number, since 155 + 3 + 1 + 505 + 2 = 666.

155315052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51138 + ... + 54089.

It is an arithmetic number, because the mean of its divisors is an integer number (11171706).

Almost surely, 2^155315052 is an apocalyptic number.

155315052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155315052 is an abundant number, since it is smaller than the sum of its proper divisors (246866364).

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

155315052 is a wasteful number, since it uses less digits than its factorization.

155315052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105278 (or 105273 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 155315052 is about 12462.5459678189. The cubic root of 155315052 is about 537.5322376194.

The spelling of 155315052 in words is "one hundred fifty-five million, three hundred fifteen thousand, fifty-two".