55555000520 has 16 divisors (see below), whose sum is σ = 124998751260. Its totient is φ = 22222000192.

The previous prime is 55555000483. The next prime is 55555000531. The reversal of 55555000520 is 2500055555.

It can be written as a sum of positive squares in 2 ways, for example, as 52050597316 + 3504403204 = 228146^2 + 59198^2 .

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 3 ways as a sum of consecutive naturals, for example, 694437467 + ... + 694437546.

Almost surely, 2^55555000520 is an apocalyptic number.

It is an amenable number.

55555000520 is an abundant number, since it is smaller than the sum of its proper divisors (69443750740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55555000520 is a wasteful number, since it uses less digits than its factorization.

55555000520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388875024 (or 1388875020 counting only the distinct ones).

The product of its (nonzero) digits is 31250, while the sum is 32.

The spelling of 55555000520 in words is "fifty-five billion, five hundred fifty-five million, five hundred twenty", and thus it is an aban number.