155511052 has 24 divisors (see below), whose sum is σ = 275788800. Its totient is φ = 76720896.

The previous prime is 155511023. The next prime is 155511061. The reversal of 155511052 is 250115551.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120949 + ... + 122227.

It is an arithmetic number, because the mean of its divisors is an integer number (11491200).

Almost surely, 2^155511052 is an apocalyptic number.

It is an amenable number.

155511052 is a deficient number, since it is larger than the sum of its proper divisors (120277748).

155511052 is a wasteful number, since it uses less digits than its factorization.

155511052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665 (or 1663 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 25.

The square root of 155511052 is about 12470.4070502931. The cubic root of 155511052 is about 537.7582557034.

The spelling of 155511052 in words is "one hundred fifty-five million, five hundred eleven thousand, fifty-two".