425425625 has 10 divisors (see below), whose sum is σ = 531612642. Its totient is φ = 340340000.

The previous prime is 425425619. The next prime is 425425633. The reversal of 425425625 is 526524524.

It can be written as a sum of positive squares in 5 ways, for example, as 62789776 + 362635849 = 7924^2 + 19043^2 .

It is not a de Polignac number, because 425425625 - 2²⁰ = 424377049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 339716 + ... + 340965.

Almost surely, 2^425425625 is an apocalyptic number.

It is an amenable number.

425425625 is a deficient number, since it is larger than the sum of its proper divisors (106187017).

425425625 is an frugal number, since it uses more digits than its factorization.

425425625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680701 (or 680686 counting only the distinct ones).

The product of its digits is 96000, while the sum is 35.

The square root of 425425625 is about 20625.8484673964. The cubic root of 425425625 is about 752.0981986832.

The spelling of 425425625 in words is "four hundred twenty-five million, four hundred twenty-five thousand, six hundred twenty-five".