315250025 has 24 divisors (see below), whose sum is σ = 401916984. Its totient is φ = 245145600.

The previous prime is 315250007. The next prime is 315250049. The reversal of 315250025 is 520052513.

It can be written as a sum of positive squares in 12 ways, for example, as 130942249 + 184307776 = 11443^2 + 13576^2 .

It is not a de Polignac number, because 315250025 - 2¹⁰ = 315249001 is a prime.

It is a super-3 number, since 3×315250025³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 468089 + ... + 468761.

It is an arithmetic number, because the mean of its divisors is an integer number (16746541).

Almost surely, 2^315250025 is an apocalyptic number.

It is an amenable number.

315250025 is a deficient number, since it is larger than the sum of its proper divisors (86666959).

315250025 is a wasteful number, since it uses less digits than its factorization.

315250025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181 (or 1176 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 315250025 is about 17755.2816085806. The cubic root of 315250025 is about 680.5891844243.

The spelling of 315250025 in words is "three hundred fifteen million, two hundred fifty thousand, twenty-five".