55554840992 has 48 divisors (see below), whose sum is σ = 125014300992. Its totient is φ = 23806187520.

The previous prime is 55554840973. The next prime is 55554841003. The reversal of 55554840992 is 29904845555.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3296267 + ... + 3313077.

It is an arithmetic number, because the mean of its divisors is an integer number (2604464604).

Almost surely, 2^55554840992 is an apocalyptic number.

It is an amenable number.

55554840992 is an abundant number, since it is smaller than the sum of its proper divisors (69459460000).

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

55554840992 is a wasteful number, since it uses less digits than its factorization.

55554840992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31581 (or 31573 counting only the distinct ones).

The product of its (nonzero) digits is 12960000, while the sum is 56.

The spelling of 55554840992 in words is "fifty-five billion, five hundred fifty-four million, eight hundred forty thousand, nine hundred ninety-two".