55497351280 has 80 divisors (see below), whose sum is σ = 148525493760. Its totient is φ = 18890747136.

The previous prime is 55497351263. The next prime is 55497351317. The reversal of 55497351280 is 8215379455.

55497351280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278644 + ... + 434323.

It is an arithmetic number, because the mean of its divisors is an integer number (1856568672).

Almost surely, 2^55497351280 is an apocalyptic number.

It is an amenable number.

55497351280 is an abundant number, since it is smaller than the sum of its proper divisors (93028142480).

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

55497351280 is a wasteful number, since it uses less digits than its factorization.

55497351280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713126 (or 713120 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 49.

The spelling of 55497351280 in words is "fifty-five billion, four hundred ninety-seven million, three hundred fifty-one thousand, two hundred eighty".