25097825 has 6 divisors (see below), whose sum is σ = 31121334. Its totient is φ = 20078240.

The previous prime is 25097791. The next prime is 25097837. The reversal of 25097825 is 52879052.

It can be written as a sum of positive squares in 3 ways, for example, as 7744 + 25090081 = 88^2 + 5009^2 .

It is not a de Polignac number, because 25097825 - 2¹⁰ = 25096801 is a prime.

It is a Duffinian 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, 501932 + ... + 501981.

It is an arithmetic number, because the mean of its divisors is an integer number (5186889).

Almost surely, 2^25097825 is an apocalyptic number.

25097825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25097825 is a deficient number, since it is larger than the sum of its proper divisors (6023509).

25097825 is a wasteful number, since it uses less digits than its factorization.

25097825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003923 (or 1003918 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 25097825 is about 5009.7729489469. The cubic root of 25097825 is about 292.7826668213.

The spelling of 25097825 in words is "twenty-five million, ninety-seven thousand, eight hundred twenty-five".