55561205325 has 24 divisors (see below), whose sum is σ = 91876583808. Its totient is φ = 29627678080.

The previous prime is 55561205303. The next prime is 55561205339. The reversal of 55561205325 is 52350216555.

It is not a de Polignac number, because 55561205325 - 2⁶ = 55561205261 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 412609 + ... + 530441.

It is an arithmetic number, because the mean of its divisors is an integer number (3828190992).

Almost surely, 2^55561205325 is an apocalyptic number.

It is an amenable number.

55561205325 is a deficient number, since it is larger than the sum of its proper divisors (36315378483).

55561205325 is a wasteful number, since it uses less digits than its factorization.

55561205325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124133 (or 124128 counting only the distinct ones).

The product of its (nonzero) digits is 225000, while the sum is 39.

The spelling of 55561205325 in words is "fifty-five billion, five hundred sixty-one million, two hundred five thousand, three hundred twenty-five".