22755539 has 4 divisors (see below), whose sum is σ = 22815960. Its totient is φ = 22695120.

The previous prime is 22755527. The next prime is 22755541. The reversal of 22755539 is 93555722.

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 22755539 - 2⁸ = 22755283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22755569) 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, 29642 + ... + 30399.

It is an arithmetic number, because the mean of its divisors is an integer number (5703990).

Almost surely, 2^22755539 is an apocalyptic number.

22755539 is a deficient number, since it is larger than the sum of its proper divisors (60421).

22755539 is an equidigital number, since it uses as much as digits as its factorization.

22755539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60420.

The product of its digits is 94500, while the sum is 38.

The square root of 22755539 is about 4770.2766167173. The cubic root of 22755539 is about 283.3755497264.

The spelling of 22755539 in words is "twenty-two million, seven hundred fifty-five thousand, five hundred thirty-nine".