157929025 has 12 divisors (see below), whose sum is σ = 196537644. Its totient is φ = 125888000.

The previous prime is 157929019. The next prime is 157929047. The reversal of 157929025 is 520929751.

It can be written as a sum of positive squares in 6 ways, for example, as 18122049 + 139806976 = 4257^2 + 11824^2 .

It is not a de Polignac number, because 157929025 - 2⁵ = 157928993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4216 + ... + 18265.

It is an arithmetic number, because the mean of its divisors is an integer number (16378137).

Almost surely, 2^157929025 is an apocalyptic number.

It is an amenable number.

157929025 is a deficient number, since it is larger than the sum of its proper divisors (38608619).

157929025 is a wasteful number, since it uses less digits than its factorization.

157929025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22772 (or 22767 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 157929025 is about 12566.9815389377. The cubic root of 157929025 is about 540.5310562148.

The spelling of 157929025 in words is "one hundred fifty-seven million, nine hundred twenty-nine thousand, twenty-five".