25028825 has 6 divisors (see below), whose sum is σ = 31035774. Its totient is φ = 20023040.

The previous prime is 25028821. The next prime is 25028867. The reversal of 25028825 is 52882052.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 456976 + 24571849 = 676^2 + 4957^2 .

It is not a de Polignac number, because 25028825 - 2² = 25028821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25028791 and 25028800.

It is not an unprimeable number, because it can be changed into a prime (25028821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 500552 + ... + 500601.

It is an arithmetic number, because the mean of its divisors is an integer number (5172629).

Almost surely, 2^25028825 is an apocalyptic number.

25028825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25028825 is a deficient number, since it is larger than the sum of its proper divisors (6006949).

25028825 is a wasteful number, since it uses less digits than its factorization.

25028825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001163 (or 1001158 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 25028825 is about 5002.8816695980. The cubic root of 25028825 is about 292.5141104061.

The spelling of 25028825 in words is "twenty-five million, twenty-eight thousand, eight hundred twenty-five".