54631121 has 4 divisors (see below), whose sum is σ = 54711792. Its totient is φ = 54550452.

The previous prime is 54631111. The next prime is 54631123. The reversal of 54631121 is 12113645.

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-54631121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54631123) 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, 39311 + ... + 40676.

It is an arithmetic number, because the mean of its divisors is an integer number (13677948).

Almost surely, 2^54631121 is an apocalyptic number.

It is an amenable number.

54631121 is a deficient number, since it is larger than the sum of its proper divisors (80671).

54631121 is an equidigital number, since it uses as much as digits as its factorization.

54631121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80670.

The product of its digits is 720, while the sum is 23.

The square root of 54631121 is about 7391.2868297746. The cubic root of 54631121 is about 379.4431386539.

Adding to 54631121 its reverse (12113645), we get a palindrome (66744766).

The spelling of 54631121 in words is "fifty-four million, six hundred thirty-one thousand, one hundred twenty-one".