510651025 has 12 divisors (see below), whose sum is σ = 645156252. Its totient is φ = 400811840.

The previous prime is 510651007. The next prime is 510651059. The reversal of 510651025 is 520156015.

It can be written as a sum of positive squares in 6 ways, for example, as 6558721 + 504092304 = 2561^2 + 22452^2 .

It is not a de Polignac number, because 510651025 - 2⁹ = 510650513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191374 + ... + 194023.

It is an arithmetic number, because the mean of its divisors is an integer number (53763021).

Almost surely, 2^510651025 is an apocalyptic number.

It is an amenable number.

510651025 is a deficient number, since it is larger than the sum of its proper divisors (134505227).

510651025 is a wasteful number, since it uses less digits than its factorization.

510651025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385460 (or 385455 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 510651025 is about 22597.5889200596. The cubic root of 510651025 is about 799.2967909065.

The spelling of 510651025 in words is "five hundred ten million, six hundred fifty-one thousand, twenty-five".