20135055 has 24 divisors (see below), whose sum is σ = 34232976. Its totient is φ = 10071040.

The previous prime is 20135047. The next prime is 20135069. The reversal of 20135055 is 55053102.

It is not a de Polignac number, because 20135055 - 2³ = 20135047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71515 + ... + 71795.

It is an arithmetic number, because the mean of its divisors is an integer number (1426374).

Almost surely, 2^20135055 is an apocalyptic number.

20135055 is a deficient number, since it is larger than the sum of its proper divisors (14097921).

20135055 is an equidigital number, since it uses as much as digits as its factorization.

20135055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 20135055 is about 4487.2101577706. The cubic root of 20135055 is about 272.0513842873.

Adding to 20135055 its reverse (55053102), we get a palindrome (75188157).

The spelling of 20135055 in words is "twenty million, one hundred thirty-five thousand, fifty-five".