55737878976 has 224 divisors, whose sum is σ = 182158233600. Its totient is φ = 16596679680.

The previous prime is 55737878969. The next prime is 55737879019. The reversal of 55737878976 is 67987873755.

It is a super-2 number, since 2×55737878976² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 656365 + ... + 736403.

It is an arithmetic number, because the mean of its divisors is an integer number (813206400).

Almost surely, 2^55737878976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55737878976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91079116800).

55737878976 is an abundant number, since it is smaller than the sum of its proper divisors (126420354624).

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

55737878976 is a wasteful number, since it uses less digits than its factorization.

55737878976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80104 (or 80088 counting only the distinct ones).

The product of its digits is 622339200, while the sum is 72.

The spelling of 55737878976 in words is "fifty-five billion, seven hundred thirty-seven million, eight hundred seventy-eight thousand, nine hundred seventy-six".