512401625 has 8 divisors (see below), whose sum is σ = 639477384. Its totient is φ = 409921200.

The previous prime is 512401601. The next prime is 512401639. The reversal of 512401625 is 526104215.

It can be written as a sum of positive squares in 4 ways, for example, as 123365449 + 389036176 = 11107^2 + 19724^2 .

It is not a de Polignac number, because 512401625 - 2²⁸ = 243966169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 512401594 and 512401603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2049482 + ... + 2049731.

It is an arithmetic number, because the mean of its divisors is an integer number (79934673).

Almost surely, 2^512401625 is an apocalyptic number.

It is an amenable number.

512401625 is a deficient number, since it is larger than the sum of its proper divisors (127075759).

512401625 is an equidigital number, since it uses as much as digits as its factorization.

512401625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4099228 (or 4099218 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 512401625 is about 22636.2900007930. The cubic root of 512401625 is about 800.2091250161.

The spelling of 512401625 in words is "five hundred twelve million, four hundred one thousand, six hundred twenty-five".