25216875 has 30 divisors (see below), whose sum is σ = 45526052. Its totient is φ = 13446000.

The previous prime is 25216871. The next prime is 25216903. The reversal of 25216875 is 57861252.

It is a happy number.

25216875 is a `hidden beast` number, since 2 + 521 + 68 + 75 = 666.

It is not a de Polignac number, because 25216875 - 2² = 25216871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25216871) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3384 + ... + 7866.

Almost surely, 2^25216875 is an apocalyptic number.

25216875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25216875 is a deficient number, since it is larger than the sum of its proper divisors (20309177).

25216875 is an equidigital number, since it uses as much as digits as its factorization.

25216875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4509 (or 4491 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 25216875 is about 5021.6406681482. The cubic root of 25216875 is about 293.2448690132.

The spelling of 25216875 in words is "twenty-five million, two hundred sixteen thousand, eight hundred seventy-five".