55010555551 has 6 divisors (see below), whose sum is σ = 63991870800. Its totient is φ = 47151904716.

The previous prime is 55010555549. The next prime is 55010555597. The reversal of 55010555551 is 15555501055.

It is not a de Polignac number, because 55010555551 - 2¹ = 55010555549 is a prime.

It is a super-2 number, since 2×55010555551² (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 55010555551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55010555651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 561332151 + ... + 561332248.

It is an arithmetic number, because the mean of its divisors is an integer number (10665311800).

Almost surely, 2^55010555551 is an apocalyptic number.

55010555551 is a deficient number, since it is larger than the sum of its proper divisors (8981315249).

55010555551 is a wasteful number, since it uses less digits than its factorization.

55010555551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122664413 (or 1122664406 counting only the distinct ones).

The product of its (nonzero) digits is 78125, while the sum is 37.

The spelling of 55010555551 in words is "fifty-five billion, ten million, five hundred fifty-five thousand, five hundred fifty-one".