155502155 has 16 divisors (see below), whose sum is σ = 189199584. Its totient is φ = 122680320.

The previous prime is 155502119. The next prime is 155502167. The reversal of 155502155 is 551205551.

It is not a de Polignac number, because 155502155 - 2¹⁰ = 155501131 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237809 + ... + 238461.

It is an arithmetic number, because the mean of its divisors is an integer number (11824974).

Almost surely, 2^155502155 is an apocalyptic number.

155502155 is a deficient number, since it is larger than the sum of its proper divisors (33697429).

155502155 is an equidigital number, since it uses as much as digits as its factorization.

155502155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246.

The product of its (nonzero) digits is 6250, while the sum is 29.

The square root of 155502155 is about 12470.0503206683. The cubic root of 155502155 is about 537.7480002127.

The spelling of 155502155 in words is "one hundred fifty-five million, five hundred two thousand, one hundred fifty-five".