155263506 has 32 divisors (see below), whose sum is σ = 322833600. Its totient is φ = 49721280.

The previous prime is 155263489. The next prime is 155263541. The reversal of 155263506 is 605362551.

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, 34600 + ... + 38828.

It is an arithmetic number, because the mean of its divisors is an integer number (10088550).

Almost surely, 2^155263506 is an apocalyptic number.

155263506 is an abundant number, since it is smaller than the sum of its proper divisors (167570094).

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

155263506 is a wasteful number, since it uses less digits than its factorization.

155263506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4474.

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 155263506 is about 12460.4777597009. The cubic root of 155263506 is about 537.4727655932.

The spelling of 155263506 in words is "one hundred fifty-five million, two hundred sixty-three thousand, five hundred six".