157825825 has 6 divisors (see below), whose sum is σ = 195704054. Its totient is φ = 126260640.

The previous prime is 157825823. The next prime is 157825847. The reversal of 157825825 is 528528751.

It can be written as a sum of positive squares in 3 ways, for example, as 97344 + 157728481 = 312^2 + 12559^2 .

It is not a de Polignac number, because 157825825 - 2¹ = 157825823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157825823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3156492 + ... + 3156541.

Almost surely, 2^157825825 is an apocalyptic number.

It is an amenable number.

157825825 is a deficient number, since it is larger than the sum of its proper divisors (37878229).

157825825 is an equidigital number, since it uses as much as digits as its factorization.

157825825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6313043 (or 6313038 counting only the distinct ones).

The product of its digits is 224000, while the sum is 43.

The square root of 157825825 is about 12562.8748700288. The cubic root of 157825825 is about 540.4132924282.

The spelling of 157825825 in words is "one hundred fifty-seven million, eight hundred twenty-five thousand, eight hundred twenty-five".