55210076772 has 48 divisors (see below), whose sum is σ = 129973804800. Its totient is φ = 18239576832.

The previous prime is 55210076759. The next prime is 55210076773. The reversal of 55210076772 is 27767001255.

It is not an unprimeable number, because it can be changed into a prime (55210076773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 783333 + ... + 850899.

It is an arithmetic number, because the mean of its divisors is an integer number (2707787600).

Almost surely, 2^55210076772 is an apocalyptic number.

It is an amenable number.

55210076772 is an abundant number, since it is smaller than the sum of its proper divisors (74763728028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55210076772 is a wasteful number, since it uses less digits than its factorization.

55210076772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68180 (or 68178 counting only the distinct ones).

The product of its (nonzero) digits is 205800, while the sum is 42.

The spelling of 55210076772 in words is "fifty-five billion, two hundred ten million, seventy-six thousand, seven hundred seventy-two".