155513052 has 36 divisors (see below), whose sum is σ = 395314920. Its totient is φ = 51545952.

The previous prime is 155513027. The next prime is 155513087. The reversal of 155513052 is 250315551.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5623 + ... + 18510.

It is an arithmetic number, because the mean of its divisors is an integer number (10980970).

Almost surely, 2^155513052 is an apocalyptic number.

155513052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155513052 is an abundant number, since it is smaller than the sum of its proper divisors (239801868).

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

155513052 is a wasteful number, since it uses less digits than its factorization.

155513052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24322 (or 24317 counting only the distinct ones).

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

The square root of 155513052 is about 12470.4872398796. The cubic root of 155513052 is about 537.7605610313.

The spelling of 155513052 in words is "one hundred fifty-five million, five hundred thirteen thousand, fifty-two".