55501879065 has 16 divisors (see below), whose sum is σ = 88808436288. Its totient is φ = 29599192256.

The previous prime is 55501879061. The next prime is 55501879067. The reversal of 55501879065 is 56097810555.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 55501879065 - 2² = 55501879061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55501878999 and 55501879017.

It is not an unprimeable number, because it can be changed into a prime (55501879061) 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, 161959 + ... + 370451.

It is an arithmetic number, because the mean of its divisors is an integer number (5550527268).

Almost surely, 2^55501879065 is an apocalyptic number.

It is an amenable number.

55501879065 is a deficient number, since it is larger than the sum of its proper divisors (33306557223).

55501879065 is a wasteful number, since it uses less digits than its factorization.

55501879065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226248.

The product of its (nonzero) digits is 1890000, while the sum is 51.

The spelling of 55501879065 in words is "fifty-five billion, five hundred one million, eight hundred seventy-nine thousand, sixty-five".