54555184421 has 4 divisors (see below), whose sum is σ = 54559785792. Its totient is φ = 54550583052.

The previous prime is 54555184379. The next prime is 54555184433. The reversal of 54555184421 is 12448155545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54555184421 is a prime.

It is a super-2 number, since 2×54555184421² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54555184471) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2282855 + ... + 2306628.

It is an arithmetic number, because the mean of its divisors is an integer number (13639946448).

Almost surely, 2^54555184421 is an apocalyptic number.

It is an amenable number.

54555184421 is a deficient number, since it is larger than the sum of its proper divisors (4601371).

54555184421 is a wasteful number, since it uses less digits than its factorization.

54555184421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4601370.

The product of its digits is 640000, while the sum is 44.

The spelling of 54555184421 in words is "fifty-four billion, five hundred fifty-five million, one hundred eighty-four thousand, four hundred twenty-one".