25072925 has 6 divisors (see below), whose sum is σ = 31090458. Its totient is φ = 20058320.

The previous prime is 25072903. The next prime is 25072933. The reversal of 25072925 is 52927052.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1666681 + 23406244 = 1291^2 + 4838^2 .

It is not a de Polignac number, because 25072925 - 2⁸ = 25072669 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25072891 and 25072900.

It is a congruent 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, 501434 + ... + 501483.

It is an arithmetic number, because the mean of its divisors is an integer number (5181743).

Almost surely, 2^25072925 is an apocalyptic number.

25072925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25072925 is a deficient number, since it is larger than the sum of its proper divisors (6017533).

25072925 is a wasteful number, since it uses less digits than its factorization.

25072925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002927 (or 1002922 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 25072925 is about 5007.2871896866. The cubic root of 25072925 is about 292.6858098138.

Adding to 25072925 its reverse (52927052), we get a palindrome (77999977).

The spelling of 25072925 in words is "twenty-five million, seventy-two thousand, nine hundred twenty-five".