2556472444 has 24 divisors (see below), whose sum is σ = 4738538448. Its totient is φ = 1202653440.

The previous prime is 2556472423. The next prime is 2556472447. The reversal of 2556472444 is 4442746552.

It is a self number, because there is not a number n which added to its sum of digits gives 2556472444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556472447) 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, 408499 + ... + 414709.

It is an arithmetic number, because the mean of its divisors is an integer number (197439102).

Almost surely, 2^2556472444 is an apocalyptic number.

It is an amenable number.

2556472444 is a deficient number, since it is larger than the sum of its proper divisors (2182066004).

2556472444 is a wasteful number, since it uses less digits than its factorization.

2556472444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12285 (or 12283 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 43.

The square root of 2556472444 is about 50561.5708221175. The cubic root of 2556472444 is about 1367.3521314402.

The spelling of 2556472444 in words is "two billion, five hundred fifty-six million, four hundred seventy-two thousand, four hundred forty-four".