55012388544 has 224 divisors, whose sum is σ = 169640463360. Its totient is φ = 17461287936.

The previous prime is 55012388531. The next prime is 55012388551. The reversal of 55012388544 is 44588321055.

55012388544 is a `hidden beast` number, since 5 + 5 + 0 + 1 + 23 + 88 + 544 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 55012388544.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2995839 + ... + 3014145.

Almost surely, 2^55012388544 is an apocalyptic number.

55012388544 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55012388544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84820231680).

55012388544 is an abundant number, since it is smaller than the sum of its proper divisors (114628074816).

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

55012388544 is a wasteful number, since it uses less digits than its factorization.

55012388544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18412 (or 18396 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 45.

It can be divided in two parts, 55012 and 388544, that added together give a square (443556 = 666²).

The spelling of 55012388544 in words is "fifty-five billion, twelve million, three hundred eighty-eight thousand, five hundred forty-four".