25522717 has 4 divisors (see below), whose sum is σ = 27842976. Its totient is φ = 23202460.

The previous prime is 25522699. The next prime is 25522741. The reversal of 25522717 is 71722552.

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 25522717 - 2⁷ = 25522589 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 (25522747) 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, 1160113 + ... + 1160134.

It is an arithmetic number, because the mean of its divisors is an integer number (6960744).

Almost surely, 2^25522717 is an apocalyptic number.

It is an amenable number.

25522717 is a deficient number, since it is larger than the sum of its proper divisors (2320259).

25522717 is a wasteful number, since it uses less digits than its factorization.

25522717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320258.

The product of its digits is 9800, while the sum is 31.

The square root of 25522717 is about 5052.0012866190. The cubic root of 25522717 is about 294.4256449002.

The spelling of 25522717 in words is "twenty-five million, five hundred twenty-two thousand, seven hundred seventeen".