2156563053 has 24 divisors (see below), whose sum is σ = 3268487040. Its totient is φ = 1367578080.

The previous prime is 2156563051. The next prime is 2156563069. The reversal of 2156563053 is 3503656512.

2156563053 is a `hidden beast` number, since 2 + 15 + 6 + 5 + 630 + 5 + 3 = 666.

It is not a de Polignac number, because 2156563053 - 2¹ = 2156563051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2156562999 and 2156563017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156563051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8688 + ... + 66246.

It is an arithmetic number, because the mean of its divisors is an integer number (136186960).

Almost surely, 2^2156563053 is an apocalyptic number.

2156563053 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2156563053 is a deficient number, since it is larger than the sum of its proper divisors (1111923987).

2156563053 is a wasteful number, since it uses less digits than its factorization.

2156563053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57769 (or 57766 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The square root of 2156563053 is about 46438.8097715693. The cubic root of 2156563053 is about 1291.9748317312.

The spelling of 2156563053 in words is "two billion, one hundred fifty-six million, five hundred sixty-three thousand, fifty-three".