510640425 has 36 divisors (see below), whose sum is σ = 931892364. Its totient is φ = 267196800.

The previous prime is 510640399. The next prime is 510640451. The reversal of 510640425 is 524046015.

510640425 is a `hidden beast` number, since 5 + 10 + 640 + 4 + 2 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (510640399) and next prime (510640451).

It can be written as a sum of positive squares in 6 ways, for example, as 48734361 + 461906064 = 6981^2 + 21492^2 .

It is not a de Polignac number, because 510640425 - 2⁷ = 510640297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9486 + ... + 33335.

It is an arithmetic number, because the mean of its divisors is an integer number (25885899).

Almost surely, 2^510640425 is an apocalyptic number.

It is an amenable number.

510640425 is a deficient number, since it is larger than the sum of its proper divisors (421251939).

510640425 is a wasteful number, since it uses less digits than its factorization.

510640425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42890 (or 42882 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 510640425 is about 22597.3543805464. The cubic root of 510640425 is about 799.2912603163.

The spelling of 510640425 in words is "five hundred ten million, six hundred forty thousand, four hundred twenty-five".