425520531 has 6 divisors (see below), whose sum is σ = 614640780. Its totient is φ = 283680348.

The previous prime is 425520527. The next prime is 425520541. The reversal of 425520531 is 135025524.

It is a happy number.

425520531 is a `hidden beast` number, since 425 + 5 + 205 + 31 = 666.

It is not a de Polignac number, because 425520531 - 2² = 425520527 is a prime.

It is a super-2 number, since 2×425520531² = 362135444605043922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 425520495 and 425520504.

It is not an unprimeable number, because it can be changed into a prime (425520541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23640021 + ... + 23640038.

It is an arithmetic number, because the mean of its divisors is an integer number (102440130).

Almost surely, 2^425520531 is an apocalyptic number.

425520531 is a deficient number, since it is larger than the sum of its proper divisors (189120249).

425520531 is a wasteful number, since it uses less digits than its factorization.

425520531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47280065 (or 47280062 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 425520531 is about 20628.1489959715. The cubic root of 425520531 is about 752.1541217559.

The spelling of 425520531 in words is "four hundred twenty-five million, five hundred twenty thousand, five hundred thirty-one".