2501256 has 32 divisors (see below), whose sum is σ = 6328800. Its totient is φ = 823680.

The previous prime is 2501251. The next prime is 2501269. The reversal of 2501256 is 6521052.

It is an Ulam number.

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

It is not an unprimeable number, because it can be changed into a prime (2501251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1551 + ... + 2721.

It is an arithmetic number, because the mean of its divisors is an integer number (197775).

2^2501256 is an apocalyptic number.

It is an amenable number.

2501256 is an abundant number, since it is smaller than the sum of its proper divisors (3827544).

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

2501256 is a wasteful number, since it uses less digits than its factorization.

2501256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269 (or 1265 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2501256 is about 1581.5359622848. The cubic root of 2501256 is about 135.7436057480.

The spelling of 2501256 in words is "two million, five hundred one thousand, two hundred fifty-six".