522440425 has 12 divisors (see below), whose sum is σ = 697659340. Its totient is φ = 385801920.

The previous prime is 522440393. The next prime is 522440441. The reversal of 522440425 is 524044225.

It can be written as a sum of positive squares in 6 ways, for example, as 228523689 + 293916736 = 15117^2 + 17144^2 .

It is not a de Polignac number, because 522440425 - 2⁵ = 522440393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 522440393 and 522440402.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 803430 + ... + 804079.

Almost surely, 2^522440425 is an apocalyptic number.

It is an amenable number.

522440425 is a deficient number, since it is larger than the sum of its proper divisors (175218915).

522440425 is a wasteful number, since it uses less digits than its factorization.

522440425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607532 (or 1607527 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 522440425 is about 22856.9557246804. The cubic root of 522440425 is about 805.4011734450.

The spelling of 522440425 in words is "five hundred twenty-two million, four hundred forty thousand, four hundred twenty-five".