4002555243 has 12 divisors (see below), whose sum is σ = 5578863080. Its totient is φ = 2552353056.

The previous prime is 4002555229. The next prime is 4002555251. The reversal of 4002555243 is 3425552004.

It is not a de Polignac number, because 4002555243 - 2²⁵ = 3969000811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4002555243.

It is not an unprimeable number, because it can be changed into a prime (4002555343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1259458 + ... + 1262631.

Almost surely, 2^4002555243 is an apocalyptic number.

4002555243 is a deficient number, since it is larger than the sum of its proper divisors (1576307837).

4002555243 is a wasteful number, since it uses less digits than its factorization.

4002555243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2522138 (or 2522115 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 4002555243 is about 63265.7509478865. The cubic root of 4002555243 is about 1587.7389963031.

The spelling of 4002555243 in words is "four billion, two million, five hundred fifty-five thousand, two hundred forty-three".