55050440454 has 64 divisors (see below), whose sum is σ = 125771950080. Its totient is φ = 17835539040.

The previous prime is 55050440447. The next prime is 55050440483. The reversal of 55050440454 is 45404405055.

55050440454 is a `hidden beast` number, since 550 + 50 + 4 + 4 + 0 + 4 + 54 = 666.

It is a super-2 number, since 2×55050440454² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 1966117 + ... + 1993919.

It is an arithmetic number, because the mean of its divisors is an integer number (1965186720).

Almost surely, 2^55050440454 is an apocalyptic number.

55050440454 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55050440454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62885975040).

55050440454 is an abundant number, since it is smaller than the sum of its proper divisors (70721509626).

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

55050440454 is a wasteful number, since it uses less digits than its factorization.

55050440454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28842 (or 28836 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 36.

The spelling of 55050440454 in words is "fifty-five billion, fifty million, four hundred forty thousand, four hundred fifty-four".