25678025 has 12 divisors (see below), whose sum is σ = 33517200. Its totient is φ = 19460880.

The previous prime is 25678019. The next prime is 25678057. The reversal of 25678025 is 52087652.

It is not a de Polignac number, because 25678025 - 2⁶ = 25677961 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26555 + ... + 27504.

It is an arithmetic number, because the mean of its divisors is an integer number (2793100).

Almost surely, 2^25678025 is an apocalyptic number.

25678025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25678025 is a deficient number, since it is larger than the sum of its proper divisors (7839175).

25678025 is a wasteful number, since it uses less digits than its factorization.

25678025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54088 (or 54083 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 25678025 is about 5067.3489123999. The cubic root of 25678025 is about 295.0216397034.

The spelling of 25678025 in words is "twenty-five million, six hundred seventy-eight thousand, twenty-five".