2163557253 has 32 divisors (see below), whose sum is σ = 3406233600. Its totient is φ = 1204251840.

The previous prime is 2163557243. The next prime is 2163557269. The reversal of 2163557253 is 3527553612.

It is not a de Polignac number, because 2163557253 - 2¹⁰ = 2163556229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163557243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72700 + ... + 98042.

It is an arithmetic number, because the mean of its divisors is an integer number (106444800).

Almost surely, 2^2163557253 is an apocalyptic number.

It is an amenable number.

2163557253 is a deficient number, since it is larger than the sum of its proper divisors (1242676347).

2163557253 is a wasteful number, since it uses less digits than its factorization.

2163557253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25569.

The product of its digits is 189000, while the sum is 39.

The square root of 2163557253 is about 46514.0543599459. The cubic root of 2163557253 is about 1293.3700423489.

The spelling of 2163557253 in words is "two billion, one hundred sixty-three million, five hundred fifty-seven thousand, two hundred fifty-three".