55544518260 has 192 divisors, whose sum is σ = 215445565440. Its totient is φ = 11541709440.

The previous prime is 55544518247. The next prime is 55544518261. The reversal of 55544518260 is 6281544555.

55544518260 is a `hidden beast` number, since 55 + 544 + 51 + 8 + 2 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55544518261) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 626344 + ... + 709503.

It is an arithmetic number, because the mean of its divisors is an integer number (1122112320).

Almost surely, 2^55544518260 is an apocalyptic number.

It is an amenable number.

55544518260 is an abundant number, since it is smaller than the sum of its proper divisors (159901047180).

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

55544518260 is a wasteful number, since it uses less digits than its factorization.

55544518260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335883 (or 1335875 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 45.

The spelling of 55544518260 in words is "fifty-five billion, five hundred forty-four million, five hundred eighteen thousand, two hundred sixty".