425652631 has 4 divisors (see below), whose sum is σ = 425810664. Its totient is φ = 425494600.

The previous prime is 425652589. The next prime is 425652653. The reversal of 425652631 is 136256524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 425652631 - 2⁷ = 425652503 is a prime.

It is a super-2 number, since 2×425652631² = 362360324554444322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425655631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74905 + ... + 80386.

It is an arithmetic number, because the mean of its divisors is an integer number (106452666).

Almost surely, 2^425652631 is an apocalyptic number.

425652631 is a deficient number, since it is larger than the sum of its proper divisors (158033).

425652631 is a wasteful number, since it uses less digits than its factorization.

425652631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158032.

The product of its digits is 43200, while the sum is 34.

The square root of 425652631 is about 20631.3506828807. The cubic root of 425652631 is about 752.2319474402.

The spelling of 425652631 in words is "four hundred twenty-five million, six hundred fifty-two thousand, six hundred thirty-one".