425521285 has 16 divisors (see below), whose sum is σ = 588931200. Its totient is φ = 289106496.

The previous prime is 425521279. The next prime is 425521303. The reversal of 425521285 is 582125524.

It is not a de Polignac number, because 425521285 - 2⁵ = 425521253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 425521285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51955 + ... + 59584.

It is an arithmetic number, because the mean of its divisors is an integer number (36808200).

Almost surely, 2^425521285 is an apocalyptic number.

It is an amenable number.

425521285 is a deficient number, since it is larger than the sum of its proper divisors (163409915).

425521285 is a wasteful number, since it uses less digits than its factorization.

425521285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111660.

The product of its digits is 32000, while the sum is 34.

The square root of 425521285 is about 20628.1672719609. The cubic root of 425521285 is about 752.1545660149.

The spelling of 425521285 in words is "four hundred twenty-five million, five hundred twenty-one thousand, two hundred eighty-five".