55800807827825 has 6 divisors (see below), whose sum is σ = 69193001706534. Its totient is φ = 44640646262240.

The previous prime is 55800807827731. The next prime is 55800807827887. The reversal of 55800807827825 is 52872870800855.

It can be written as a sum of positive squares in 3 ways, for example, as 15329542767616 + 40471265060209 = 3915296^2 + 6361703^2 .

It is a de Polignac number, because none of the positive numbers 2^k-55800807827825 is a prime.

It is a super-2 number, since 2×55800807827825² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1116016156532 + ... + 1116016156581.

It is an arithmetic number, because the mean of its divisors is an integer number (11532166951089).

Almost surely, 2^{55800807827825} is an apocalyptic number.

It is an amenable number.

55800807827825 is a deficient number, since it is larger than the sum of its proper divisors (13392193878709).

55800807827825 is a wasteful number, since it uses less digits than its factorization.

55800807827825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2232032313123 (or 2232032313118 counting only the distinct ones).

The product of its (nonzero) digits is 100352000, while the sum is 65.

The spelling of 55800807827825 in words is "fifty-five trillion, eight hundred billion, eight hundred seven million, eight hundred twenty-seven thousand, eight hundred twenty-five".