25225025 has 48 divisors (see below), whose sum is σ = 38747520. Its totient is φ = 15897600.

The previous prime is 25225021. The next prime is 25225049. The reversal of 25225025 is 52052252.

It is a happy number.

It is not a de Polignac number, because 25225025 - 2² = 25225021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25225021) 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, 181406 + ... + 181544.

It is an arithmetic number, because the mean of its divisors is an integer number (807240).

Almost surely, 2^25225025 is an apocalyptic number.

25225025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25225025 is a deficient number, since it is larger than the sum of its proper divisors (13522495).

25225025 is a wasteful number, since it uses less digits than its factorization.

25225025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 25225025 is about 5022.4520903638. The cubic root of 25225025 is about 293.2764574932.

Adding to 25225025 its reverse (52052252), we get a palindrome (77277277).

The spelling of 25225025 in words is "twenty-five million, two hundred twenty-five thousand, twenty-five".