2113636553 has 8 divisors (see below), whose sum is σ = 2422316160. Its totient is φ = 1806639840.

The previous prime is 2113636523. The next prime is 2113636573. The reversal of 2113636553 is 3556363112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2113636553 - 2¹⁴ = 2113620169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113636523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418028 + ... + 423053.

It is an arithmetic number, because the mean of its divisors is an integer number (302789520).

Almost surely, 2^2113636553 is an apocalyptic number.

It is an amenable number.

2113636553 is a deficient number, since it is larger than the sum of its proper divisors (308679607).

2113636553 is an equidigital number, since it uses as much as digits as its factorization.

2113636553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841447.

The product of its digits is 48600, while the sum is 35.

The square root of 2113636553 is about 45974.3031812338. The cubic root of 2113636553 is about 1283.3450416353.

Adding to 2113636553 its reverse (3556363112), we get a palindrome (5669999665).

The spelling of 2113636553 in words is "two billion, one hundred thirteen million, six hundred thirty-six thousand, five hundred fifty-three".