425620131 has 4 divisors (see below), whose sum is σ = 567493512. Its totient is φ = 283746752.

The previous prime is 425620123. The next prime is 425620171. The reversal of 425620131 is 131026524.

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 425620131 - 2³ = 425620123 is a prime.

It is a super-2 number, since 2×425620131² = 362304991824914322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (425620171) 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, 70936686 + ... + 70936691.

It is an arithmetic number, because the mean of its divisors is an integer number (141873378).

Almost surely, 2^425620131 is an apocalyptic number.

425620131 is a deficient number, since it is larger than the sum of its proper divisors (141873381).

425620131 is a wasteful number, since it uses less digits than its factorization.

425620131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141873380.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 425620131 is about 20630.5630315801. The cubic root of 425620131 is about 752.2128018124.

Adding to 425620131 its reverse (131026524), we get a palindrome (556646655).

The spelling of 425620131 in words is "four hundred twenty-five million, six hundred twenty thousand, one hundred thirty-one".