54722121 has 4 divisors (see below), whose sum is σ = 72962832. Its totient is φ = 36481412.

The previous prime is 54722089. The next prime is 54722131. The reversal of 54722121 is 12122745.

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 not a de Polignac number, because 54722121 - 2⁵ = 54722089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54722091 and 54722100.

It is not an unprimeable number, because it can be changed into a prime (54722131) 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, 9120351 + ... + 9120356.

It is an arithmetic number, because the mean of its divisors is an integer number (18240708).

Almost surely, 2^54722121 is an apocalyptic number.

It is an amenable number.

54722121 is a deficient number, since it is larger than the sum of its proper divisors (18240711).

54722121 is a wasteful number, since it uses less digits than its factorization.

54722121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18240710.

The product of its digits is 1120, while the sum is 24.

The square root of 54722121 is about 7397.4401653545. The cubic root of 54722121 is about 379.6537034424.

Adding to 54722121 its reverse (12122745), we get a palindrome (66844866).

The spelling of 54722121 in words is "fifty-four million, seven hundred twenty-two thousand, one hundred twenty-one".