55911788830 has 16 divisors (see below), whose sum is σ = 101853766224. Its totient is φ = 22095260800.

The previous prime is 55911788753. The next prime is 55911788833. The reversal of 55911788830 is 3888711955.

It is a happy number.

It is a super-2 number, since 2×55911788830² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55911788833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33680971 + ... + 33682630.

It is an arithmetic number, because the mean of its divisors is an integer number (6365860389).

Almost surely, 2^55911788830 is an apocalyptic number.

55911788830 is a deficient number, since it is larger than the sum of its proper divisors (45941977394).

55911788830 is a wasteful number, since it uses less digits than its factorization.

55911788830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67363691.

The product of its (nonzero) digits is 2419200, while the sum is 55.

The spelling of 55911788830 in words is "fifty-five billion, nine hundred eleven million, seven hundred eighty-eight thousand, eight hundred thirty".