22455961 has 4 divisors (see below), whose sum is σ = 24497424. Its totient is φ = 20414500.

The previous prime is 22455959. The next prime is 22455973. The reversal of 22455961 is 16955422.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 22455961 - 2¹ = 22455959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22455161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1020715 + ... + 1020736.

It is an arithmetic number, because the mean of its divisors is an integer number (6124356).

Almost surely, 2^22455961 is an apocalyptic number.

It is an amenable number.

22455961 is a deficient number, since it is larger than the sum of its proper divisors (2041463).

22455961 is a wasteful number, since it uses less digits than its factorization.

22455961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041462.

The product of its digits is 21600, while the sum is 34.

The square root of 22455961 is about 4738.7720983394. The cubic root of 22455961 is about 282.1265004275.

The spelling of 22455961 in words is "twenty-two million, four hundred fifty-five thousand, nine hundred sixty-one".