25191125 has 16 divisors (see below), whose sum is σ = 31848960. Its totient is φ = 19890000.

The previous prime is 25191119. The next prime is 25191143. The reversal of 25191125 is 52119152.

It is not a de Polignac number, because 25191125 - 2¹⁰ = 25190101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25191094 and 25191103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8600 + ... + 11150.

It is an arithmetic number, because the mean of its divisors is an integer number (1990560).

Almost surely, 2^25191125 is an apocalyptic number.

25191125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25191125 is a deficient number, since it is larger than the sum of its proper divisors (6657835).

25191125 is an equidigital number, since it uses as much as digits as its factorization.

25191125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2645 (or 2635 counting only the distinct ones).

The product of its digits is 900, while the sum is 26.

The square root of 25191125 is about 5019.0761102020. The cubic root of 25191125 is about 293.1450201743.

The spelling of 25191125 in words is "twenty-five million, one hundred ninety-one thousand, one hundred twenty-five".