2156256303 has 16 divisors (see below), whose sum is σ = 2929453440. Its totient is φ = 1410377184.

The previous prime is 2156256301. The next prime is 2156256307. The reversal of 2156256303 is 3036526512.

It is not a de Polignac number, because 2156256303 - 2¹ = 2156256301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156256301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80925 + ... + 104217.

It is an arithmetic number, because the mean of its divisors is an integer number (183090840).

Almost surely, 2^2156256303 is an apocalyptic number.

2156256303 is a deficient number, since it is larger than the sum of its proper divisors (773197137).

2156256303 is a wasteful number, since it uses less digits than its factorization.

2156256303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23878.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 2156256303 is about 46435.5069208898. The cubic root of 2156256303 is about 1291.9135718991.

The spelling of 2156256303 in words is "two billion, one hundred fifty-six million, two hundred fifty-six thousand, three hundred three".