2530656 has 96 divisors (see below), whose sum is σ = 7711200. Its totient is φ = 806400.

The previous prime is 2530597. The next prime is 2530663. The reversal of 2530656 is 6560352.

2530656 is a `hidden beast` number, since 2 + 5 + 3 + 0 + 656 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25006 + ... + 25106.

It is an arithmetic number, because the mean of its divisors is an integer number (80325).

2^2530656 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 2530656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3855600).

2530656 is an abundant number, since it is smaller than the sum of its proper divisors (5180544).

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

2530656 is a wasteful number, since it uses less digits than its factorization.

2530656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 2530656 is about 1590.8035705265. The cubic root of 2530656 is about 136.2733831876.

The spelling of 2530656 in words is "two million, five hundred thirty thousand, six hundred fifty-six".