25130191 has 8 divisors (see below), whose sum is σ = 26402400. Its totient is φ = 23872992.

The previous prime is 25130173. The next prime is 25130201. The reversal of 25130191 is 19103152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25130191 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 (25130291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240 + ... + 7093.

It is an arithmetic number, because the mean of its divisors is an integer number (3300300).

Almost surely, 2^25130191 is an apocalyptic number.

25130191 is a deficient number, since it is larger than the sum of its proper divisors (1272209).

25130191 is a wasteful number, since it uses less digits than its factorization.

25130191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7505.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 25130191 is about 5013.0021942944. The cubic root of 25130191 is about 292.9084696645.

Subtracting from 25130191 its sum of digits (22), we obtain a square (25130169 = 5013²).

The spelling of 25130191 in words is "twenty-five million, one hundred thirty thousand, one hundred ninety-one".