25381825 has 24 divisors (see below), whose sum is σ = 36817088. Its totient is φ = 16994880.

The previous prime is 25381813. The next prime is 25381841. The reversal of 25381825 is 52818352.

It is not a de Polignac number, because 25381825 - 2¹⁹ = 24857537 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 5839 + ... + 9211.

Almost surely, 2^25381825 is an apocalyptic number.

25381825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25381825 is a deficient number, since it is larger than the sum of its proper divisors (11435263).

25381825 is a wasteful number, since it uses less digits than its factorization.

25381825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3433 (or 3428 counting only the distinct ones).

The product of its digits is 19200, while the sum is 34.

The square root of 25381825 is about 5038.0378124822. The cubic root of 25381825 is about 293.8828763570.

The spelling of 25381825 in words is "twenty-five million, three hundred eighty-one thousand, eight hundred twenty-five".