2631256 has 16 divisors (see below), whose sum is σ = 5049000. Its totient is φ = 1284864.

The previous prime is 2631247. The next prime is 2631259. The reversal of 2631256 is 6521362.

It is a self number, because there is not a number n which added to its sum of digits gives 2631256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2631259) 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, 3481 + ... + 4168.

2^2631256 is an apocalyptic number.

It is an amenable number.

2631256 is a deficient number, since it is larger than the sum of its proper divisors (2417744).

2631256 is a wasteful number, since it uses less digits than its factorization.

2631256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7698 (or 7694 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 2631256 is about 1622.1146691896. The cubic root of 2631256 is about 138.0557080974.

The spelling of 2631256 in words is "two million, six hundred thirty-one thousand, two hundred fifty-six".