2163656253 has 32 divisors (see below), whose sum is σ = 3389939712. Its totient is φ = 1213819200.

The previous prime is 2163656237. The next prime is 2163656263. The reversal of 2163656253 is 3526563612.

2163656253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2163656253 - 2⁴ = 2163656237 is a prime.

It is a super-2 number, since 2×2163656253² = 9362816762292000018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163656203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22450 + ... + 69507.

It is an arithmetic number, because the mean of its divisors is an integer number (105935616).

Almost surely, 2^2163656253 is an apocalyptic number.

2163656253 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2163656253 is a deficient number, since it is larger than the sum of its proper divisors (1226283459).

2163656253 is a wasteful number, since it uses less digits than its factorization.

2163656253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92025.

The product of its digits is 194400, while the sum is 39.

The square root of 2163656253 is about 46515.1185422546. The cubic root of 2163656253 is about 1293.3897693796.

The spelling of 2163656253 in words is "two billion, one hundred sixty-three million, six hundred fifty-six thousand, two hundred fifty-three".