54373921 has 4 divisors (see below), whose sum is σ = 62141632. Its totient is φ = 46606212.

The previous prime is 54373903. The next prime is 54373931. The reversal of 54373921 is 12937345.

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 54373921 - 2⁵ = 54373889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54373931) 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, 3883845 + ... + 3883858.

It is an arithmetic number, because the mean of its divisors is an integer number (15535408).

Almost surely, 2^54373921 is an apocalyptic number.

It is an amenable number.

54373921 is a deficient number, since it is larger than the sum of its proper divisors (7767711).

54373921 is an equidigital number, since it uses as much as digits as its factorization.

54373921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7767710.

The product of its digits is 22680, while the sum is 34.

The square root of 54373921 is about 7373.8674384613. The cubic root of 54373921 is about 378.8467366464.

The spelling of 54373921 in words is "fifty-four million, three hundred seventy-three thousand, nine hundred twenty-one".