54504391 has 4 divisors (see below), whose sum is σ = 55194400. Its totient is φ = 53814384.

The previous prime is 54504389. The next prime is 54504419. The reversal of 54504391 is 19340545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54504391 - 2¹ = 54504389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54504301) 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, 344886 + ... + 345043.

It is an arithmetic number, because the mean of its divisors is an integer number (13798600).

Almost surely, 2^54504391 is an apocalyptic number.

54504391 is a deficient number, since it is larger than the sum of its proper divisors (690009).

54504391 is an equidigital number, since it uses as much as digits as its factorization.

54504391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690008.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 54504391 is about 7382.7089201729. The cubic root of 54504391 is about 379.1495083381.

The spelling of 54504391 in words is "fifty-four million, five hundred four thousand, three hundred ninety-one".