54622139 has 16 divisors (see below), whose sum is σ = 67949280. Its totient is φ = 43138560.

The previous prime is 54622133. The next prime is 54622157. The reversal of 54622139 is 93122645.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 54622139 - 2⁴ = 54622123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54622133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8804 + ... + 13665.

It is an arithmetic number, because the mean of its divisors is an integer number (4246830).

Almost surely, 2^54622139 is an apocalyptic number.

54622139 is a deficient number, since it is larger than the sum of its proper divisors (13327141).

54622139 is a wasteful number, since it uses less digits than its factorization.

54622139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22510.

The product of its digits is 12960, while the sum is 32.

The square root of 54622139 is about 7390.6791974757. The cubic root of 54622139 is about 379.4223425399.

The spelling of 54622139 in words is "fifty-four million, six hundred twenty-two thousand, one hundred thirty-nine".