425064631 has 4 divisors (see below), whose sum is σ = 425212200. Its totient is φ = 424917064.

The previous prime is 425064593. The next prime is 425064649. The reversal of 425064631 is 136460524.

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 425064631 - 2¹³ = 425056439 is a prime.

It is a super-2 number, since 2×425064631² = 361359881054332322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425064593 and 425064602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425064691) 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, 69376 + ... + 75253.

It is an arithmetic number, because the mean of its divisors is an integer number (106303050).

Almost surely, 2^425064631 is an apocalyptic number.

425064631 is a deficient number, since it is larger than the sum of its proper divisors (147569).

425064631 is a wasteful number, since it uses less digits than its factorization.

425064631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147568.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 425064631 is about 20617.0956004962. The cubic root of 425064631 is about 751.8854080474.

The spelling of 425064631 in words is "four hundred twenty-five million, sixty-four thousand, six hundred thirty-one".