55555550050051 has 16 divisors (see below), whose sum is σ = 56160220267008. Its totient is φ = 54953869370400.

The previous prime is 55555550050009. The next prime is 55555550050061. The reversal of 55555550050051 is 15005005555555.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 55555550050051 - 2²⁹ = 55555013179139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55555550049983 and 55555550050010.

It is not an unprimeable number, because it can be changed into a prime (55555550050061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56587780 + ... + 57561166.

It is an arithmetic number, because the mean of its divisors is an integer number (3510013766688).

Almost surely, 2^{55555550050051} is an apocalyptic number.

55555550050051 is a deficient number, since it is larger than the sum of its proper divisors (604670216957).

55555550050051 is a wasteful number, since it uses less digits than its factorization.

55555550050051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974922.

The product of its (nonzero) digits is 1953125, while the sum is 46.

The spelling of 55555550050051 in words is "fifty-five trillion, five hundred fifty-five billion, five hundred fifty million, fifty thousand, fifty-one".