55406256984 has 112 divisors (see below), whose sum is σ = 167740524000. Its totient is φ = 17048055744.

The previous prime is 55406256973. The next prime is 55406257019. The reversal of 55406256984 is 48965260455.

55406256984 is a `hidden beast` number, since 5 + 5 + 4 + 0 + 625 + 6 + 9 + 8 + 4 = 666.

55406256984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 55406256984.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 289584 + ... + 441215.

It is an arithmetic number, because the mean of its divisors is an integer number (1497683250).

Almost surely, 2^55406256984 is an apocalyptic number.

55406256984 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

55406256984 is an abundant number, since it is smaller than the sum of its proper divisors (112334267016).

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

55406256984 is a wasteful number, since it uses less digits than its factorization.

55406256984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730836 (or 730817 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 54.

The spelling of 55406256984 in words is "fifty-five billion, four hundred six million, two hundred fifty-six thousand, nine hundred eighty-four".