22972505 has 8 divisors (see below), whose sum is σ = 28239624. Its totient is φ = 17929600.

The previous prime is 22972487. The next prime is 22972507. The reversal of 22972505 is 50527922.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1784896 + 21187609 = 1336^2 + 4603^2 .

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

It is not a de Polignac number, because 22972505 - 2¹² = 22968409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22972507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55826 + ... + 56235.

It is an arithmetic number, because the mean of its divisors is an integer number (3529953).

Almost surely, 2^22972505 is an apocalyptic number.

It is an amenable number.

22972505 is a deficient number, since it is larger than the sum of its proper divisors (5267119).

22972505 is a wasteful number, since it uses less digits than its factorization.

22972505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112107.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 22972505 is about 4792.9641141991. The cubic root of 22972505 is about 284.2733308820.

The spelling of 22972505 in words is "twenty-two million, nine hundred seventy-two thousand, five hundred five".