157855508 has 18 divisors (see below), whose sum is σ = 277947306. Its totient is φ = 78444048.

The previous prime is 157855501. The next prime is 157855541. The reversal of 157855508 is 805558751.

It can be written as a sum of positive squares in only one way, i.e., 155700484 + 2155024 = 12478^2 + 1468^2 .

It is a super-2 number, since 2×157855508² = 49836722811876128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157855501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 429941 + ... + 430307.

It is an arithmetic number, because the mean of its divisors is an integer number (15441517).

Almost surely, 2^157855508 is an apocalyptic number.

It is an amenable number.

157855508 is a deficient number, since it is larger than the sum of its proper divisors (120091798).

157855508 is an equidigital number, since it uses as much as digits as its factorization.

157855508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031 (or 662 counting only the distinct ones).

The product of its (nonzero) digits is 280000, while the sum is 44.

The square root of 157855508 is about 12564.0561921698. The cubic root of 157855508 is about 540.4471696094.

The spelling of 157855508 in words is "one hundred fifty-seven million, eight hundred fifty-five thousand, five hundred eight".