25379197 has 4 divisors (see below), whose sum is σ = 25400320. Its totient is φ = 25358076.

The previous prime is 25379191. The next prime is 25379203. The reversal of 25379197 is 79197352.

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 an interprime number because it is at equal distance from previous prime (25379191) and next prime (25379203).

It is a cyclic number.

It is not a de Polignac number, because 25379197 - 2⁷ = 25379069 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 (25379191) 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, 8643 + ... + 11200.

It is an arithmetic number, because the mean of its divisors is an integer number (6350080).

Almost surely, 2^25379197 is an apocalyptic number.

It is an amenable number.

25379197 is a deficient number, since it is larger than the sum of its proper divisors (21123).

25379197 is a wasteful number, since it uses less digits than its factorization.

25379197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21122.

The product of its digits is 119070, while the sum is 43.

The square root of 25379197 is about 5037.7769899034. The cubic root of 25379197 is about 293.8727332611.

The spelling of 25379197 in words is "twenty-five million, three hundred seventy-nine thousand, one hundred ninety-seven".