55276853720772 has 48 divisors (see below), whose sum is σ = 130317591785472. Its totient is φ = 18234930362880.

The previous prime is 55276853720771. The next prime is 55276853720779. The reversal of 55276853720772 is 27702735867255.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55276853720771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29939268 + ... + 31731899.

It is an arithmetic number, because the mean of its divisors is an integer number (2714949828864).

Almost surely, 2^{55276853720772} is an apocalyptic number.

It is an amenable number.

55276853720772 is an abundant number, since it is smaller than the sum of its proper divisors (75040738064700).

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

55276853720772 is a wasteful number, since it uses less digits than its factorization.

55276853720772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61671948 (or 61671946 counting only the distinct ones).

The product of its (nonzero) digits is 345744000, while the sum is 66.

The spelling of 55276853720772 in words is "fifty-five trillion, two hundred seventy-six billion, eight hundred fifty-three million, seven hundred twenty thousand, seven hundred seventy-two".