22725617 has 4 divisors (see below), whose sum is σ = 24062436. Its totient is φ = 21388800.

The previous prime is 22725607. The next prime is 22725643. The reversal of 22725617 is 71652722.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9006001 + 13719616 = 3001^2 + 3704^2 .

It is a cyclic number.

It is not a de Polignac number, because 22725617 - 2⁶ = 22725553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22725607) 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, 668384 + ... + 668417.

It is an arithmetic number, because the mean of its divisors is an integer number (6015609).

Almost surely, 2^22725617 is an apocalyptic number.

It is an amenable number.

22725617 is a deficient number, since it is larger than the sum of its proper divisors (1336819).

22725617 is a wasteful number, since it uses less digits than its factorization.

22725617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336818.

The product of its digits is 11760, while the sum is 32.

The square root of 22725617 is about 4767.1392889237. The cubic root of 22725617 is about 283.2512886630.

The spelling of 22725617 in words is "twenty-two million, seven hundred twenty-five thousand, six hundred seventeen".