425670531 has 32 divisors (see below), whose sum is σ = 706019328. Its totient is φ = 224125440.

The previous prime is 425670529. The next prime is 425670541. The reversal of 425670531 is 135076524.

It is not a de Polignac number, because 425670531 - 2¹ = 425670529 is a prime.

It is a super-2 number, since 2×425670531² = 362390801923643922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 425670492 and 425670501.

It is not an unprimeable number, because it can be changed into a prime (425670541) 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 31 ways as a sum of consecutive naturals, for example, 21891 + ... + 36476.

It is an arithmetic number, because the mean of its divisors is an integer number (22063104).

Almost surely, 2^425670531 is an apocalyptic number.

425670531 is a deficient number, since it is larger than the sum of its proper divisors (280348797).

425670531 is a wasteful number, since it uses less digits than its factorization.

425670531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58411.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 425670531 is about 20631.7844841400. The cubic root of 425670531 is about 752.2424918467.

The spelling of 425670531 in words is "four hundred twenty-five million, six hundred seventy thousand, five hundred thirty-one".