25698425 has 12 divisors (see below), whose sum is σ = 32545536. Its totient is φ = 20120400.

The previous prime is 25698419. The next prime is 25698433. The reversal of 25698425 is 52489652.

It is not a de Polignac number, because 25698425 - 2¹² = 25694329 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9761 + ... + 12110.

It is an arithmetic number, because the mean of its divisors is an integer number (2712128).

Almost surely, 2^25698425 is an apocalyptic number.

25698425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25698425 is a deficient number, since it is larger than the sum of its proper divisors (6847111).

25698425 is a wasteful number, since it uses less digits than its factorization.

25698425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21928 (or 21923 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The square root of 25698425 is about 5069.3613996242. The cubic root of 25698425 is about 295.0997460266.

The spelling of 25698425 in words is "twenty-five million, six hundred ninety-eight thousand, four hundred twenty-five".