20635113 has 4 divisors (see below), whose sum is σ = 27513488. Its totient is φ = 13756740.

The previous prime is 20635103. The next prime is 20635169. The reversal of 20635113 is 31153602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20635113 - 2⁵ = 20635081 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20635113.

It is not an unprimeable number, because it can be changed into a prime (20635103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3439183 + ... + 3439188.

It is an arithmetic number, because the mean of its divisors is an integer number (6878372).

Almost surely, 2^20635113 is an apocalyptic number.

It is an amenable number.

20635113 is a deficient number, since it is larger than the sum of its proper divisors (6878375).

20635113 is an equidigital number, since it uses as much as digits as its factorization.

20635113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6878374.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 20635113 is about 4542.5887993522. The cubic root of 20635113 is about 274.2851428017.

Adding to 20635113 its reverse (31153602), we get a palindrome (51788715).

The spelling of 20635113 in words is "twenty million, six hundred thirty-five thousand, one hundred thirteen".