520651425 has 24 divisors (see below), whose sum is σ = 983784256. Its totient is φ = 238011840.

The previous prime is 520651381. The next prime is 520651463. The reversal of 520651425 is 524156025.

It is not a de Polignac number, because 520651425 - 2⁶ = 520651361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520651392 and 520651401.

It is an unprimeable number.

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, 495334 + ... + 496383.

Almost surely, 2^520651425 is an apocalyptic number.

It is an amenable number.

520651425 is a deficient number, since it is larger than the sum of its proper divisors (463132831).

520651425 is a wasteful number, since it uses less digits than its factorization.

520651425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991737 (or 991732 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 520651425 is about 22817.7874694283. The cubic root of 520651425 is about 804.4808066295.

The spelling of 520651425 in words is "five hundred twenty million, six hundred fifty-one thousand, four hundred twenty-five".