54222215 has 4 divisors (see below), whose sum is σ = 65066664. Its totient is φ = 43377768.

The previous prime is 54222191. The next prime is 54222221. The reversal of 54222215 is 51222245.

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 54222215 - 2⁶ = 54222151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5422217 + ... + 5422226.

It is an arithmetic number, because the mean of its divisors is an integer number (16266666).

Almost surely, 2^54222215 is an apocalyptic number.

54222215 is a deficient number, since it is larger than the sum of its proper divisors (10844449).

54222215 is a wasteful number, since it uses less digits than its factorization.

54222215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10844448.

The product of its digits is 1600, while the sum is 23.

The square root of 54222215 is about 7363.5735210562. The cubic root of 54222215 is about 378.4940745850.

The spelling of 54222215 in words is "fifty-four million, two hundred twenty-two thousand, two hundred fifteen".