25648875 has 48 divisors (see below), whose sum is σ = 52857792. Its totient is φ = 11721600.

The previous prime is 25648871. The next prime is 25648891. The reversal of 25648875 is 57884652.

25648875 is a `hidden beast` number, since 2 + 564 + 8 + 87 + 5 = 666.

It is not a de Polignac number, because 25648875 - 2² = 25648871 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 25648875.

It is not an unprimeable number, because it can be changed into a prime (25648871) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6247 + ... + 9503.

It is an arithmetic number, because the mean of its divisors is an integer number (1101204).

Almost surely, 2^25648875 is an apocalyptic number.

25648875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25648875 is an abundant number, since it is smaller than the sum of its proper divisors (27208917).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25648875 is a wasteful number, since it uses less digits than its factorization.

25648875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3285 (or 3272 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 25648875 is about 5064.4718382078. The cubic root of 25648875 is about 294.9099600723.

The spelling of 25648875 in words is "twenty-five million, six hundred forty-eight thousand, eight hundred seventy-five".