157257250 has 16 divisors (see below), whose sum is σ = 294386040. Its totient is φ = 62902800.

The previous prime is 157257229. The next prime is 157257301. The reversal of 157257250 is 52752751.

157257250 is digitally balanced in base 2, 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 4 ways, for example, as 47238129 + 110019121 = 6873^2 + 10489^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314265 + ... + 314764.

Almost surely, 2^157257250 is an apocalyptic number.

157257250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157257250 is a deficient number, since it is larger than the sum of its proper divisors (137128790).

157257250 is an equidigital number, since it uses as much as digits as its factorization.

157257250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629046 (or 629036 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 34.

The square root of 157257250 is about 12540.2252770833. The cubic root of 157257250 is about 539.7635567518.

The spelling of 157257250 in words is "one hundred fifty-seven million, two hundred fifty-seven thousand, two hundred fifty".