22755261 has 4 divisors (see below), whose sum is σ = 30340352. Its totient is φ = 15170172.

The previous prime is 22755241. The next prime is 22755263. The reversal of 22755261 is 16255722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22755261 - 2⁹ = 22754749 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 (22755263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3792541 + ... + 3792546.

It is an arithmetic number, because the mean of its divisors is an integer number (7585088).

Almost surely, 2^22755261 is an apocalyptic number.

It is an amenable number.

22755261 is a deficient number, since it is larger than the sum of its proper divisors (7585091).

22755261 is an equidigital number, since it uses as much as digits as its factorization.

22755261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7585090.

The product of its digits is 8400, while the sum is 30.

The square root of 22755261 is about 4770.2474778569. The cubic root of 22755261 is about 283.3743957404.

The spelling of 22755261 in words is "twenty-two million, seven hundred fifty-five thousand, two hundred sixty-one".