25312025 has 6 divisors (see below), whose sum is σ = 31386942. Its totient is φ = 20249600.

The previous prime is 25312019. The next prime is 25312037. The reversal of 25312025 is 52021352.

It can be written as a sum of positive squares in 3 ways, for example, as 1915456 + 23396569 = 1384^2 + 4837^2 .

It is not a de Polignac number, because 25312025 - 2⁶ = 25311961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25311988 and 25312006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 506216 + ... + 506265.

It is an arithmetic number, because the mean of its divisors is an integer number (5231157).

Almost surely, 2^25312025 is an apocalyptic number.

25312025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25312025 is a deficient number, since it is larger than the sum of its proper divisors (6074917).

25312025 is a wasteful number, since it uses less digits than its factorization.

25312025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012491 (or 1012486 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 25312025 is about 5031.1057432735. The cubic root of 25312025 is about 293.6132364716.

Adding to 25312025 its reverse (52021352), we get a palindrome (77333377).

The spelling of 25312025 in words is "twenty-five million, three hundred twelve thousand, twenty-five".