55277985792 has 336 divisors, whose sum is σ = 159327689472. Its totient is φ = 17022320640.

The previous prime is 55277985751. The next prime is 55277985793. The reversal of 55277985792 is 29758977255.

Its product of digits (111132000) is a multiple of the sum of its prime divisors (126).

It is not an unprimeable number, because it can be changed into a prime (55277985793) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1042980838 + ... + 1042980890.

It is an arithmetic number, because the mean of its divisors is an integer number (474189552).

Almost surely, 2^55277985792 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 55277985792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79663844736).

55277985792 is an abundant number, since it is smaller than the sum of its proper divisors (104049703680).

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

55277985792 is an equidigital number, since it uses as much as digits as its factorization.

55277985792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 126 counting only the distinct ones).

The product of its digits is 111132000, while the sum is 66.

The spelling of 55277985792 in words is "fifty-five billion, two hundred seventy-seven million, nine hundred eighty-five thousand, seven hundred ninety-two".