55491773046 has 16 divisors (see below), whose sum is σ = 116824785600. Its totient is φ = 17523717768.

The previous prime is 55491773033. The next prime is 55491773047. The reversal of 55491773046 is 64037719455.

55491773046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55491773046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55491773047) 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, 243384856 + ... + 243385083.

It is an arithmetic number, because the mean of its divisors is an integer number (7301549100).

Almost surely, 2^55491773046 is an apocalyptic number.

55491773046 is an abundant number, since it is smaller than the sum of its proper divisors (61333012554).

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

55491773046 is a wasteful number, since it uses less digits than its factorization.

55491773046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486769963.

The product of its (nonzero) digits is 3175200, while the sum is 51.

The spelling of 55491773046 in words is "fifty-five billion, four hundred ninety-one million, seven hundred seventy-three thousand, forty-six".