25121325 has 72 divisors (see below), whose sum is σ = 47204320. Its totient is φ = 11750400.

The previous prime is 25121323. The next prime is 25121347. The reversal of 25121325 is 52312152.

It is not a de Polignac number, because 25121325 - 2¹ = 25121323 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25121323) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 411795 + ... + 411855.

Almost surely, 2^25121325 is an apocalyptic number.

25121325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25121325 is a deficient number, since it is larger than the sum of its proper divisors (22082995).

25121325 is a wasteful number, since it uses less digits than its factorization.

25121325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 105 counting only the distinct ones).

The product of its digits is 600, while the sum is 21.

The square root of 25121325 is about 5012.1178158539. The cubic root of 25121325 is about 292.8740193102.

Adding to 25121325 its reverse (52312152), we get a palindrome (77433477).

The spelling of 25121325 in words is "twenty-five million, one hundred twenty-one thousand, three hundred twenty-five".