25007825 has 6 divisors (see below), whose sum is σ = 31009734. Its totient is φ = 20006240.

The previous prime is 25007803. The next prime is 25007839. The reversal of 25007825 is 52870052.

It can be written as a sum of positive squares in 3 ways, for example, as 1669264 + 23338561 = 1292^2 + 4831^2 .

It is not a de Polignac number, because 25007825 - 2²⁴ = 8230609 is a prime.

It is a super-2 number, since 2×25007825² = 1250782622461250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 500132 + ... + 500181.

It is an arithmetic number, because the mean of its divisors is an integer number (5168289).

Almost surely, 2^25007825 is an apocalyptic number.

25007825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25007825 is a deficient number, since it is larger than the sum of its proper divisors (6001909).

25007825 is a wasteful number, since it uses less digits than its factorization.

25007825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000323 (or 1000318 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 25007825 is about 5000.7824387790. The cubic root of 25007825 is about 292.4322778907.

Adding to 25007825 its reverse (52870052), we get a palindrome (77877877).

The spelling of 25007825 in words is "twenty-five million, seven thousand, eight hundred twenty-five".