312512025 has 24 divisors (see below), whose sum is σ = 590499904. Its totient is φ = 142862400.

The previous prime is 312512021. The next prime is 312512041. The reversal of 312512025 is 520215213.

It is not a de Polignac number, because 312512025 - 2² = 312512021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 312511992 and 312512010.

It is not an unprimeable number, because it can be changed into a prime (312512021) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 297106 + ... + 298155.

Almost surely, 2^312512025 is an apocalyptic number.

312512025 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

312512025 is a deficient number, since it is larger than the sum of its proper divisors (277987879).

312512025 is a wasteful number, since it uses less digits than its factorization.

312512025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595281 (or 595276 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 312512025 is about 17678.0096447536. The cubic root of 312512025 is about 678.6131082696.

Adding to 312512025 its reverse (520215213), we get a palindrome (832727238).

The spelling of 312512025 in words is "three hundred twelve million, five hundred twelve thousand, twenty-five".