157205056 has 28 divisors (see below), whose sum is σ = 322714620. Its totient is φ = 75891200.

The previous prime is 157205021. The next prime is 157205117. The reversal of 157205056 is 650502751.

It can be written as a sum of positive squares in 2 ways, for example, as 58003456 + 99201600 = 7616^2 + 9960^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40495 + ... + 44206.

Almost surely, 2^157205056 is an apocalyptic number.

157205056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

157205056 is an abundant number, since it is smaller than the sum of its proper divisors (165509564).

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

157205056 is an equidigital number, since it uses as much as digits as its factorization.

157205056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84742 (or 84732 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 157205056 is about 12538.1440412846. The cubic root of 157205056 is about 539.7038339378.

The spelling of 157205056 in words is "one hundred fifty-seven million, two hundred five thousand, fifty-six".