55256077015240 has 64 divisors (see below), whose sum is σ = 124504659619200. Its totient is φ = 22070716627968.

The previous prime is 55256077015169. The next prime is 55256077015261. The reversal of 55256077015240 is 4251077065255.

It is a super-2 number, since 2×55256077015240² (a number of 28 digits) contains 22 as substring.

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, 106234287 + ... + 106753153.

It is an arithmetic number, because the mean of its divisors is an integer number (1945385306550).

Almost surely, 2^{55256077015240} is an apocalyptic number.

It is an amenable number.

55256077015240 is an abundant number, since it is smaller than the sum of its proper divisors (69248582603960).

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

55256077015240 is a wasteful number, since it uses less digits than its factorization.

55256077015240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522694 (or 522690 counting only the distinct ones).

The product of its (nonzero) digits is 2940000, while the sum is 49.

The spelling of 55256077015240 in words is "fifty-five trillion, two hundred fifty-six billion, seventy-seven million, fifteen thousand, two hundred forty".