25372117 has 4 divisors (see below), whose sum is σ = 25492576. Its totient is φ = 25251660.

The previous prime is 25372103. The next prime is 25372133. The reversal of 25372117 is 71127352.

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 25372117 - 2²³ = 16983509 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 (25372817) 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, 59913 + ... + 60334.

It is an arithmetic number, because the mean of its divisors is an integer number (6373144).

Almost surely, 2^25372117 is an apocalyptic number.

It is an amenable number.

25372117 is a deficient number, since it is larger than the sum of its proper divisors (120459).

25372117 is a wasteful number, since it uses less digits than its factorization.

25372117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120458.

The product of its digits is 2940, while the sum is 28.

The square root of 25372117 is about 5037.0742499987. The cubic root of 25372117 is about 293.8454036276.

Adding to 25372117 its reverse (71127352), we get a palindrome (96499469).

The spelling of 25372117 in words is "twenty-five million, three hundred seventy-two thousand, one hundred seventeen".