2556426072 has 32 divisors (see below), whose sum is σ = 6394520880. Its totient is φ = 851681280.

The previous prime is 2556426023. The next prime is 2556426101. The reversal of 2556426072 is 2706246552.

It is a self number, because there is not a number n which added to its sum of digits gives 2556426072.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18072 + ... + 73752.

Almost surely, 2^2556426072 is an apocalyptic number.

It is an amenable number.

2556426072 is an abundant number, since it is smaller than the sum of its proper divisors (3838094808).

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

2556426072 is a wasteful number, since it uses less digits than its factorization.

2556426072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57603 (or 57599 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 39.

The square root of 2556426072 is about 50561.1122504242. The cubic root of 2556426072 is about 1367.3438638973.

The spelling of 2556426072 in words is "two billion, five hundred fifty-six million, four hundred twenty-six thousand, seventy-two".