2556002424 has 32 divisors (see below), whose sum is σ = 6436656720. Its totient is φ = 845780736.

The previous prime is 2556002413. The next prime is 2556002441. The reversal of 2556002424 is 4242006552.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2556002391 and 2556002400.

It is a congruent 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, 385399 + ... + 391974.

Almost surely, 2^2556002424 is an apocalyptic number.

2556002424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2556002424 is an abundant number, since it is smaller than the sum of its proper divisors (3880654296).

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

2556002424 is a wasteful number, since it uses less digits than its factorization.

2556002424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777519 (or 777515 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2556002424 is about 50556.9226120420. The cubic root of 2556002424 is about 1367.2683281717.

Adding to 2556002424 its reverse (4242006552), we get a palindrome (6798008976).

The spelling of 2556002424 in words is "two billion, five hundred fifty-six million, two thousand, four hundred twenty-four".