54215899 has 8 divisors (see below), whose sum is σ = 57953952. Its totient is φ = 50592960.

The previous prime is 54215783. The next prime is 54215929. The reversal of 54215899 is 99851245.

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 54215899 - 2²¹ = 52118747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54215099) 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, 27804 + ... + 29689.

It is an arithmetic number, because the mean of its divisors is an integer number (7244244).

Almost surely, 2^54215899 is an apocalyptic number.

54215899 is a deficient number, since it is larger than the sum of its proper divisors (3738053).

54215899 is a wasteful number, since it uses less digits than its factorization.

54215899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57557.

The product of its digits is 129600, while the sum is 43.

The square root of 54215899 is about 7363.1446407089. The cubic root of 54215899 is about 378.4793778941.

The spelling of 54215899 in words is "fifty-four million, two hundred fifteen thousand, eight hundred ninety-nine".