54493921 has 8 divisors (see below), whose sum is σ = 55248480. Its totient is φ = 53743488.

The previous prime is 54493913. The next prime is 54493927. The reversal of 54493921 is 12939445.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54493921 - 2³ = 54493913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54493927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32850 + ... + 34468.

It is an arithmetic number, because the mean of its divisors is an integer number (6906060).

Almost surely, 2^54493921 is an apocalyptic number.

It is an amenable number.

54493921 is a deficient number, since it is larger than the sum of its proper divisors (754559).

54493921 is a wasteful number, since it uses less digits than its factorization.

54493921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063.

The product of its digits is 38880, while the sum is 37.

The square root of 54493921 is about 7381.9997968030. Note that the first 3 decimals coincide. The cubic root of 54493921 is about 379.1252292572.

The spelling of 54493921 in words is "fifty-four million, four hundred ninety-three thousand, nine hundred twenty-one".