55806860855 has 8 divisors (see below), whose sum is σ = 66972228192. Its totient is φ = 44642825248.

The previous prime is 55806860783. The next prime is 55806860861.

55806860855 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55806860855 - 2²² = 55802666551 is a prime.

It is a super-2 number, since 2×55806860855² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55806860855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238292 + ... + 410361.

It is an arithmetic number, because the mean of its divisors is an integer number (8371528524).

Almost surely, 2^55806860855 is an apocalyptic number.

55806860855 is a deficient number, since it is larger than the sum of its proper divisors (11165367337).

55806860855 is a wasteful number, since it uses less digits than its factorization.

55806860855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665865.

The product of its (nonzero) digits is 11520000, while the sum is 56.

The spelling of 55806860855 in words is "fifty-five billion, eight hundred six million, eight hundred sixty thousand, eight hundred fifty-five".