55642551708 has 12 divisors (see below), whose sum is σ = 129832620680. Its totient is φ = 18547517232.

The previous prime is 55642551703. The next prime is 55642551721. The reversal of 55642551708 is 80715524655.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55642551703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2318439643 + ... + 2318439666.

Almost surely, 2^55642551708 is an apocalyptic number.

It is an amenable number.

55642551708 is an abundant number, since it is smaller than the sum of its proper divisors (74190068972).

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

55642551708 is a wasteful number, since it uses less digits than its factorization.

55642551708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4636879316 (or 4636879314 counting only the distinct ones).

The product of its (nonzero) digits is 1680000, while the sum is 48.

The spelling of 55642551708 in words is "fifty-five billion, six hundred forty-two million, five hundred fifty-one thousand, seven hundred eight".