55559425 has 6 divisors (see below), whose sum is σ = 68893718. Its totient is φ = 44447520.

The previous prime is 55559381. The next prime is 55559431. The reversal of 55559425 is 52495555.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 71824 + 55487601 = 268^2 + 7449^2 .

It is a de Polignac number, because none of the positive numbers 2^k-55559425 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1111164 + ... + 1111213.

Almost surely, 2^55559425 is an apocalyptic number.

It is an amenable number.

55559425 is a deficient number, since it is larger than the sum of its proper divisors (13334293).

55559425 is a wasteful number, since it uses less digits than its factorization.

55559425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222387 (or 2222382 counting only the distinct ones).

The product of its digits is 225000, while the sum is 40.

The square root of 55559425 is about 7453.8194907041. The cubic root of 55559425 is about 381.5802727951.

The spelling of 55559425 in words is "fifty-five million, five hundred fifty-nine thousand, four hundred twenty-five".