2456556 has 24 divisors (see below), whose sum is σ = 5872944. Its totient is φ = 798720.

The previous prime is 2456539. The next prime is 2456557. The reversal of 2456556 is 6556542.

It is a happy number.

It is a super-2 number, since 2×2456556² = 12069334762272, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2456557) 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, 2005 + ... + 2988.

It is an arithmetic number, because the mean of its divisors is an integer number (244706).

2^2456556 is an apocalyptic number.

It is an amenable number.

2456556 is an abundant number, since it is smaller than the sum of its proper divisors (3416388).

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

2456556 is a wasteful number, since it uses less digits than its factorization.

2456556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5041 (or 5039 counting only the distinct ones).

The product of its digits is 36000, while the sum is 33.

The square root of 2456556 is about 1567.3404224992. The cubic root of 2456556 is about 134.9301147205.

The spelling of 2456556 in words is "two million, four hundred fifty-six thousand, five hundred fifty-six".