54223121 has 4 divisors (see below), whose sum is σ = 56580672. Its totient is φ = 51865572.

The previous prime is 54223111. The next prime is 54223139. The reversal of 54223121 is 12132245.

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-54223121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54223093 and 54223102.

It is not an unprimeable number, because it can be changed into a prime (54223111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1178741 + ... + 1178786.

It is an arithmetic number, because the mean of its divisors is an integer number (14145168).

Almost surely, 2^54223121 is an apocalyptic number.

It is an amenable number.

54223121 is a deficient number, since it is larger than the sum of its proper divisors (2357551).

54223121 is a wasteful number, since it uses less digits than its factorization.

54223121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357550.

The product of its digits is 480, while the sum is 20.

The square root of 54223121 is about 7363.6350398428. The cubic root of 54223121 is about 378.4961826614.

Adding to 54223121 its reverse (12132245), we get a palindrome (66355366).

The spelling of 54223121 in words is "fifty-four million, two hundred twenty-three thousand, one hundred twenty-one".