22455623 has 8 divisors (see below), whose sum is σ = 24226128. Its totient is φ = 20735104.

The previous prime is 22455611. The next prime is 22455637. The reversal of 22455623 is 32655422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22455623 - 2⁴ = 22455607 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 (22455523) 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 7 ways as a sum of consecutive naturals, for example, 11561 + ... + 13362.

It is an arithmetic number, because the mean of its divisors is an integer number (3028266).

Almost surely, 2^22455623 is an apocalyptic number.

22455623 is a deficient number, since it is larger than the sum of its proper divisors (1770505).

22455623 is a wasteful number, since it uses less digits than its factorization.

22455623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24993.

The product of its digits is 14400, while the sum is 29.

The square root of 22455623 is about 4738.7364349582. The cubic root of 22455623 is about 282.1250849275.

The spelling of 22455623 in words is "twenty-two million, four hundred fifty-five thousand, six hundred twenty-three".