55861992050 has 24 divisors (see below), whose sum is σ = 105863749956. Its totient is φ = 21923195840.

The previous prime is 55861992041. The next prime is 55861992071. The reversal of 55861992050 is 5029916855.

It can be written as a sum of positive squares in 6 ways, for example, as 32602996969 + 23258995081 = 180563^2 + 152509^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a self number, because there is not a number n which added to its sum of digits gives 55861992050.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10537349 + ... + 10542648.

Almost surely, 2^55861992050 is an apocalyptic number.

55861992050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55861992050 is a deficient number, since it is larger than the sum of its proper divisors (50001757906).

55861992050 is a wasteful number, since it uses less digits than its factorization.

55861992050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21080062 (or 21080057 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 50.

The spelling of 55861992050 in words is "fifty-five billion, eight hundred sixty-one million, nine hundred ninety-two thousand, fifty".