55447771531264 has 48 divisors (see below), whose sum is σ = 126706821696000. Its totient is φ = 23763330650112.

The previous prime is 55447771531247. The next prime is 55447771531289. The reversal of 55447771531264 is 46213517774455.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1933850464 + ... + 1933879135.

It is an arithmetic number, because the mean of its divisors is an integer number (2639725452000).

Almost surely, 2^{55447771531264} is an apocalyptic number.

It is an amenable number.

55447771531264 is an abundant number, since it is smaller than the sum of its proper divisors (71259050164736).

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

55447771531264 is an equidigital number, since it uses as much as digits as its factorization.

55447771531264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3867729628 (or 3867729608 counting only the distinct ones).

The product of its digits is 98784000, while the sum is 61.

The spelling of 55447771531264 in words is "fifty-five trillion, four hundred forty-seven billion, seven hundred seventy-one million, five hundred thirty-one thousand, two hundred sixty-four".