55708829780 has 24 divisors (see below), whose sum is σ = 116993159808. Its totient is φ = 22282652448.

The previous prime is 55708829777. The next prime is 55708829791. The reversal of 55708829780 is 8792880755.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 756977 + ... + 827303.

It is an arithmetic number, because the mean of its divisors is an integer number (4874714992).

Almost surely, 2^55708829780 is an apocalyptic number.

It is an amenable number.

55708829780 is an abundant number, since it is smaller than the sum of its proper divisors (61284330028).

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

55708829780 is a wasteful number, since it uses less digits than its factorization.

55708829780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109943 (or 109941 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 59.

The spelling of 55708829780 in words is "fifty-five billion, seven hundred eight million, eight hundred twenty-nine thousand, seven hundred eighty".