312250025 has 6 divisors (see below), whose sum is σ = 387190062. Its totient is φ = 249800000.

The previous prime is 312250019. The next prime is 312250039. The reversal of 312250025 is 520052213.

It can be written as a sum of positive squares in 3 ways, for example, as 692224 + 311557801 = 832^2 + 17651^2 .

It is not a de Polignac number, because 312250025 - 2¹⁶ = 312184489 is a prime.

It is a super-3 number, since 3×312250025³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312249979 and 312250006.

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, 6244976 + ... + 6245025.

It is an arithmetic number, because the mean of its divisors is an integer number (64531677).

Almost surely, 2^312250025 is an apocalyptic number.

It is an amenable number.

312250025 is a deficient number, since it is larger than the sum of its proper divisors (74940037).

312250025 is a wasteful number, since it uses less digits than its factorization.

312250025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12490011 (or 12490006 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 312250025 is about 17670.5977544621. The cubic root of 312250025 is about 678.4234128023.

The spelling of 312250025 in words is "three hundred twelve million, two hundred fifty thousand, twenty-five".