157355725 has 12 divisors (see below), whose sum is σ = 195370804. Its totient is φ = 125723520.

The previous prime is 157355717. The next prime is 157355729. The reversal of 157355725 is 527553751.

It can be written as a sum of positive squares in 6 ways, for example, as 14577124 + 142778601 = 3818^2 + 11949^2 .

It is not a de Polignac number, because 157355725 - 2³ = 157355717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157355729) 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 11 ways as a sum of consecutive naturals, for example, 18337 + ... + 25513.

Almost surely, 2^157355725 is an apocalyptic number.

It is an amenable number.

157355725 is a deficient number, since it is larger than the sum of its proper divisors (38015079).

157355725 is an equidigital number, since it uses as much as digits as its factorization.

157355725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8064 (or 8059 counting only the distinct ones).

The product of its digits is 183750, while the sum is 40.

The square root of 157355725 is about 12544.1510274709. The cubic root of 157355725 is about 539.8762004724.

The spelling of 157355725 in words is "one hundred fifty-seven million, three hundred fifty-five thousand, seven hundred twenty-five".