2556036002 has 16 divisors (see below), whose sum is σ = 4132917432. Its totient is φ = 1178584320.

The previous prime is 2556036001. The next prime is 2556036031. The reversal of 2556036002 is 2006306552.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2255395081 + 300640921 = 47491^2 + 17339^2 .

It is not an unprimeable number, because it can be changed into a prime (2556036001) 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, 18743 + ... + 73914.

Almost surely, 2^2556036002 is an apocalyptic number.

2556036002 is a deficient number, since it is larger than the sum of its proper divisors (1576881430).

2556036002 is a wasteful number, since it uses less digits than its factorization.

2556036002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93733.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 2556036002 is about 50557.2546920815. The cubic root of 2556036002 is about 1367.2743153772.

The spelling of 2556036002 in words is "two billion, five hundred fifty-six million, thirty-six thousand, two".