25075025 has 6 divisors (see below), whose sum is σ = 31093062. Its totient is φ = 20060000.

The previous prime is 25075021. The next prime is 25075049. The reversal of 25075025 is 52057052.

It can be written as a sum of positive squares in 3 ways, for example, as 2455489 + 22619536 = 1567^2 + 4756^2 .

It is not a de Polignac number, because 25075025 - 2² = 25075021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25074985 and 25075003.

It is not an unprimeable number, because it can be changed into a prime (25075021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 501476 + ... + 501525.

It is an arithmetic number, because the mean of its divisors is an integer number (5182177).

Almost surely, 2^25075025 is an apocalyptic number.

25075025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25075025 is a deficient number, since it is larger than the sum of its proper divisors (6018037).

25075025 is a wasteful number, since it uses less digits than its factorization.

25075025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003011 (or 1003006 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 25075025 is about 5007.4968796795. The cubic root of 25075025 is about 292.6939809525.

The spelling of 25075025 in words is "twenty-five million, seventy-five thousand, twenty-five".