561428425 has 12 divisors (see below), whose sum is σ = 712362640. Its totient is φ = 438696720.

The previous prime is 561428407. The next prime is 561428437. The reversal of 561428425 is 524824165.

It is not a de Polignac number, because 561428425 - 2⁷ = 561428297 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 260055 + ... + 262204.

Almost surely, 2^561428425 is an apocalyptic number.

It is an amenable number.

561428425 is a deficient number, since it is larger than the sum of its proper divisors (150934215).

561428425 is a wasteful number, since it uses less digits than its factorization.

561428425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522312 (or 522307 counting only the distinct ones).

The product of its digits is 76800, while the sum is 37.

The square root of 561428425 is about 23694.4808974580. The cubic root of 561428425 is about 824.9572919428.

The spelling of 561428425 in words is "five hundred sixty-one million, four hundred twenty-eight thousand, four hundred twenty-five".