312251425 has 6 divisors (see below), whose sum is σ = 387191798. Its totient is φ = 249801120.

The previous prime is 312251417. The next prime is 312251479. The reversal of 312251425 is 524152213.

It can be written as a sum of positive squares in 3 ways, for example, as 54937744 + 257313681 = 7412^2 + 16041^2 .

It is not a de Polignac number, because 312251425 - 2³ = 312251417 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: 12490057 = 312251425 / (3 + 1 + 2 + 2 + 5 + 1 + 4 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312251425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6245004 + ... + 6245053.

Almost surely, 2^312251425 is an apocalyptic number.

It is an amenable number.

312251425 is a deficient number, since it is larger than the sum of its proper divisors (74940373).

312251425 is a wasteful number, since it uses less digits than its factorization.

312251425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12490067 (or 12490062 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 312251425 is about 17670.6373682445. The cubic root of 312251425 is about 678.4244267241.

The spelling of 312251425 in words is "three hundred twelve million, two hundred fifty-one thousand, four hundred twenty-five".