55867765499 has 64 divisors (see below), whose sum is σ = 74515230720. Its totient is φ = 40632883200.

The previous prime is 55867765487. The next prime is 55867765531. The reversal of 55867765499 is 99456776855.

It is a happy number.

It is not a de Polignac number, because 55867765499 - 2⁴ = 55867765483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55867765409) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19594424 + ... + 19597274.

It is an arithmetic number, because the mean of its divisors is an integer number (1164300480).

Almost surely, 2^55867765499 is an apocalyptic number.

55867765499 is a deficient number, since it is larger than the sum of its proper divisors (18647465221).

55867765499 is a wasteful number, since it uses less digits than its factorization.

55867765499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3180.

The product of its digits is 571536000, while the sum is 71.

The spelling of 55867765499 in words is "fifty-five billion, eight hundred sixty-seven million, seven hundred sixty-five thousand, four hundred ninety-nine".