2521956 has 24 divisors (see below), whose sum is σ = 6088320. Its totient is φ = 811552.

The previous prime is 2521949. The next prime is 2521969. The reversal of 2521956 is 6591252.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3276 + ... + 3971.

It is an arithmetic number, because the mean of its divisors is an integer number (253680).

2^2521956 is an apocalyptic number.

It is an amenable number.

2521956 is an abundant number, since it is smaller than the sum of its proper divisors (3566364).

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

2521956 is a wasteful number, since it uses less digits than its factorization.

2521956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7283 (or 7281 counting only the distinct ones).

The product of its digits is 5400, while the sum is 30.

The square root of 2521956 is about 1588.0667492269. The cubic root of 2521956 is about 136.1170416902.

The spelling of 2521956 in words is "two million, five hundred twenty-one thousand, nine hundred fifty-six".