25990996 has 12 divisors (see below), whose sum is σ = 45520020. Its totient is φ = 12985280.

The previous prime is 25990981. The next prime is 25990997. The reversal of 25990996 is 69909952.

It can be written as a sum of positive squares in 2 ways, for example, as 10890000 + 15100996 = 3300^2 + 3886^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25990997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8160 + ... + 10888.

It is an arithmetic number, because the mean of its divisors is an integer number (3793335).

Almost surely, 2^25990996 is an apocalyptic number.

It is an amenable number.

25990996 is a deficient number, since it is larger than the sum of its proper divisors (19529024).

25990996 is a wasteful number, since it uses less digits than its factorization.

25990996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5114 (or 5112 counting only the distinct ones).

The product of its (nonzero) digits is 393660, while the sum is 49.

The square root of 25990996 is about 5098.1365222991. The cubic root of 25990996 is about 296.2154050531.

The spelling of 25990996 in words is "twenty-five million, nine hundred ninety thousand, nine hundred ninety-six".