25590940 has 12 divisors (see below), whose sum is σ = 53741016. Its totient is φ = 10236368.

The previous prime is 25590931. The next prime is 25590949. The reversal of 25590940 is 4909552.

It is an interprime number because it is at equal distance from previous prime (25590931) and next prime (25590949).

It is a junction number, because it is equal to n+sod(n) for n = 25590896 and 25590905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25590949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639754 + ... + 639793.

It is an arithmetic number, because the mean of its divisors is an integer number (4478418).

Almost surely, 2^25590940 is an apocalyptic number.

25590940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25590940 is an abundant number, since it is smaller than the sum of its proper divisors (28150076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25590940 is a wasteful number, since it uses less digits than its factorization.

25590940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279556 (or 1279554 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 25590940 is about 5058.7488571780. The cubic root of 25590940 is about 294.6877477416.

The spelling of 25590940 in words is "twenty-five million, five hundred ninety thousand, nine hundred forty".