313515025 has 6 divisors (see below), whose sum is σ = 388758662. Its totient is φ = 250812000.

The previous prime is 313515019. The next prime is 313515053. The reversal of 313515025 is 520515313.

It can be written as a sum of positive squares in 3 ways, for example, as 8803089 + 304711936 = 2967^2 + 17456^2 .

It is not a de Polignac number, because 313515025 - 2¹³ = 313506833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 12540601 = 313515025 / (3 + 1 + 3 + 5 + 1 + 5 + 0 + 2 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6270276 + ... + 6270325.

Almost surely, 2^313515025 is an apocalyptic number.

It is an amenable number.

313515025 is a deficient number, since it is larger than the sum of its proper divisors (75243637).

313515025 is a wasteful number, since it uses less digits than its factorization.

313515025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12540611 (or 12540606 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 313515025 is about 17706.3554973913. The cubic root of 313515025 is about 679.3383305684.

The spelling of 313515025 in words is "three hundred thirteen million, five hundred fifteen thousand, twenty-five".