25161875 has 20 divisors (see below), whose sum is σ = 31789824. Its totient is φ = 19908000.

The previous prime is 25161869. The next prime is 25161881. The reversal of 25161875 is 57816152.

It is an interprime number because it is at equal distance from previous prime (25161869) and next prime (25161881).

It is a de Polignac number, because none of the positive numbers 2^k-25161875 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 79217 + ... + 79533.

Almost surely, 2^25161875 is an apocalyptic number.

25161875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25161875 is a deficient number, since it is larger than the sum of its proper divisors (6627949).

25161875 is an equidigital number, since it uses as much as digits as its factorization.

25161875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 449 counting only the distinct ones).

The product of its digits is 16800, while the sum is 35.

The square root of 25161875 is about 5016.1613809765. The cubic root of 25161875 is about 293.0315170700.

It can be divided in two parts, 251 and 61875, that added together give a palindrome (62126).

The spelling of 25161875 in words is "twenty-five million, one hundred sixty-one thousand, eight hundred seventy-five".