25322501 has 4 divisors (see below), whose sum is σ = 25339392. Its totient is φ = 25305612.

The previous prime is 25322489. The next prime is 25322569. The reversal of 25322501 is 10522352.

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 25322501 - 2²² = 21128197 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 (25321501) 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, 5951 + ... + 9276.

It is an arithmetic number, because the mean of its divisors is an integer number (6334848).

Almost surely, 2^25322501 is an apocalyptic number.

It is an amenable number.

25322501 is a deficient number, since it is larger than the sum of its proper divisors (16891).

25322501 is a wasteful number, since it uses less digits than its factorization.

25322501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16890.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 25322501 is about 5032.1467585912. The cubic root of 25322501 is about 293.6537372220.

Adding to 25322501 its reverse (10522352), we get a palindrome (35844853).

The spelling of 25322501 in words is "twenty-five million, three hundred twenty-two thousand, five hundred one".