55800902650 has 12 divisors (see below), whose sum is σ = 103789679022. Its totient is φ = 22320361040.

The previous prime is 55800902557. The next prime is 55800902687. The reversal of 55800902650 is 5620900855.

It can be written as a sum of positive squares in 3 ways, for example, as 38651166801 + 17149735849 = 196599^2 + 130957^2 .

It is a super-2 number, since 2×55800902650² (a number of 22 digits) contains 22 as substring.

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, 558008977 + ... + 558009076.

Almost surely, 2^55800902650 is an apocalyptic number.

55800902650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55800902650 is a deficient number, since it is larger than the sum of its proper divisors (47988776372).

55800902650 is a wasteful number, since it uses less digits than its factorization.

55800902650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116018065 (or 1116018060 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 55800902650 in words is "fifty-five billion, eight hundred million, nine hundred two thousand, six hundred fifty".