55531900579 has 16 divisors (see below), whose sum is σ = 59696071200. Its totient is φ = 51467986944.

The previous prime is 55531900573. The next prime is 55531900597. The reversal of 55531900579 is 97500913555.

It is a cyclic number.

It is not a de Polignac number, because 55531900579 - 2¹⁷ = 55531769507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55531900573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4468927 + ... + 4481335.

It is an arithmetic number, because the mean of its divisors is an integer number (3731004450).

Almost surely, 2^55531900579 is an apocalyptic number.

55531900579 is a deficient number, since it is larger than the sum of its proper divisors (4164170621).

55531900579 is a wasteful number, since it uses less digits than its factorization.

55531900579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16422.

The product of its (nonzero) digits is 1063125, while the sum is 49.

The spelling of 55531900579 in words is "fifty-five billion, five hundred thirty-one million, nine hundred thousand, five hundred seventy-nine".