155055204 has 18 divisors (see below), whose sum is σ = 391945190. Its totient is φ = 51685056.

The previous prime is 155055193. The next prime is 155055221. The reversal of 155055204 is 402550551.

155055204 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 116640000 + 38415204 = 10800^2 + 6198^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2153509 + ... + 2153580.

Almost surely, 2^155055204 is an apocalyptic number.

It is an amenable number.

155055204 is an abundant number, since it is smaller than the sum of its proper divisors (236889986).

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

155055204 is a wasteful number, since it uses less digits than its factorization.

155055204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4307099 (or 4307094 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 155055204 is about 12452.1164466126. The cubic root of 155055204 is about 537.2322996495.

The spelling of 155055204 in words is "one hundred fifty-five million, fifty-five thousand, two hundred four".