2525656 has 48 divisors (see below), whose sum is σ = 5848200. Its totient is φ = 1016064.

The previous prime is 2525647. The next prime is 2525669. The reversal of 2525656 is 6565252.

It is a super-3 number, since 3×2525656³ = 48333010845232501248, which contains 333 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent 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, 6475 + ... + 6853.

2^2525656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2525656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2924100).

2525656 is an abundant number, since it is smaller than the sum of its proper divisors (3322544).

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

2525656 is a wasteful number, since it uses less digits than its factorization.

2525656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 405 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The square root of 2525656 is about 1589.2312607044. The cubic root of 2525656 is about 136.1835756237.

The spelling of 2525656 in words is "two million, five hundred twenty-five thousand, six hundred fifty-six".