54220405 has 8 divisors (see below), whose sum is σ = 65203200. Its totient is φ = 43283856.

The previous prime is 54220403. The next prime is 54220427. The reversal of 54220405 is 50402245.

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 54220405 - 2¹ = 54220403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54220403) 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, 8925 + ... + 13714.

It is an arithmetic number, because the mean of its divisors is an integer number (8150400).

Almost surely, 2^54220405 is an apocalyptic number.

It is an amenable number.

54220405 is a deficient number, since it is larger than the sum of its proper divisors (10982795).

54220405 is a wasteful number, since it uses less digits than its factorization.

54220405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23123.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 54220405 is about 7363.4506177471. The cubic root of 54220405 is about 378.4898630154.

The spelling of 54220405 in words is "fifty-four million, two hundred twenty thousand, four hundred five".