25620325 has 12 divisors (see below), whose sum is σ = 32015808. Its totient is φ = 20337200.

The previous prime is 25620281. The next prime is 25620347. The reversal of 25620325 is 52302652.

It is not a de Polignac number, because 25620325 - 2⁹ = 25619813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25620325.

It is a congruent number.

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, 637 + ... + 7186.

It is an arithmetic number, because the mean of its divisors is an integer number (2667984).

Almost surely, 2^25620325 is an apocalyptic number.

25620325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25620325 is a deficient number, since it is larger than the sum of its proper divisors (6395483).

25620325 is a wasteful number, since it uses less digits than its factorization.

25620325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7964 (or 7959 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 25620325 is about 5061.6523981799. The cubic root of 25620325 is about 294.8004971127.

Adding to 25620325 its reverse (52302652), we get a palindrome (77922977).

The spelling of 25620325 in words is "twenty-five million, six hundred twenty thousand, three hundred twenty-five".