54622213 has 4 divisors (see below), whose sum is σ = 54763020. Its totient is φ = 54481408.

The previous prime is 54622187. The next prime is 54622223. The reversal of 54622213 is 31222645.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28068804 + 26553409 = 5298^2 + 5153^2 .

It is a cyclic number.

It is not a de Polignac number, because 54622213 - 2⁵ = 54622181 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 (54622223) 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, 69820 + ... + 70597.

It is an arithmetic number, because the mean of its divisors is an integer number (13690755).

Almost surely, 2^54622213 is an apocalyptic number.

It is an amenable number.

54622213 is a deficient number, since it is larger than the sum of its proper divisors (140807).

54622213 is a wasteful number, since it uses less digits than its factorization.

54622213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140806.

The product of its digits is 2880, while the sum is 25.

The square root of 54622213 is about 7390.6842037798. The cubic root of 54622213 is about 379.4225138821.

Adding to 54622213 its reverse (31222645), we get a palindrome (85844858).

The spelling of 54622213 in words is "fifty-four million, six hundred twenty-two thousand, two hundred thirteen".