155808852 has 72 divisors (see below), whose sum is σ = 383695200. Its totient is φ = 49193280.

The previous prime is 155808847. The next prime is 155808857. The reversal of 155808852 is 258808551.

155808852 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (155808847) and next prime (155808857).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155808857) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 680274 + ... + 680502.

It is an arithmetic number, because the mean of its divisors is an integer number (5329100).

Almost surely, 2^155808852 is an apocalyptic number.

155808852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155808852 is an abundant number, since it is smaller than the sum of its proper divisors (227886348).

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

155808852 is a wasteful number, since it uses less digits than its factorization.

155808852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 42.

The square root of 155808852 is about 12482.3416072466. The cubic root of 155808852 is about 538.1013016174.

The spelling of 155808852 in words is "one hundred fifty-five million, eight hundred eight thousand, eight hundred fifty-two".