157002175225 has 27 divisors (see below), whose sum is σ = 226487633421. Its totient is φ = 107649124800.

The previous prime is 157002175199. The next prime is 157002175237. The reversal of 157002175225 is 522571200751.

The square root of 157002175225 is 396235.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 57088022761 + 99914152464 = 238931^2 + 316092^2 .

It is not a de Polignac number, because 157002175225 - 2²³ = 156993786617 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 13862565 + ... + 13873885.

Almost surely, 2^157002175225 is an apocalyptic number.

157002175225 is the 396235-th square number.

157002175225 is the 198118-th centered octagonal number.

It is an amenable number.

157002175225 is a deficient number, since it is larger than the sum of its proper divisors (69485458196).

157002175225 is an frugal number, since it uses more digits than its factorization.

157002175225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22666 (or 11333 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 37.

Adding to 157002175225 its reverse (522571200751), we get a palindrome (679573375976).

The spelling of 157002175225 in words is "one hundred fifty-seven billion, two million, one hundred seventy-five thousand, two hundred twenty-five".