20135056 has 10 divisors (see below), whose sum is σ = 39011702. Its totient is φ = 10067520.

The previous prime is 20135047. The next prime is 20135069. The reversal of 20135056 is 65053102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12845056 + 7290000 = 3584^2 + 2700^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 629205 + ... + 629236.

Almost surely, 2^20135056 is an apocalyptic number.

It is an amenable number.

20135056 is a deficient number, since it is larger than the sum of its proper divisors (18876646).

20135056 is a wasteful number, since it uses less digits than its factorization.

20135056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258449 (or 1258443 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 20135056 is about 4487.2102691984. The cubic root of 20135056 is about 272.0513887911.

Adding to 20135056 its reverse (65053102), we get a palindrome (85188158).

The spelling of 20135056 in words is "twenty million, one hundred thirty-five thousand, fifty-six".