20536755 has 16 divisors (see below), whose sum is σ = 33080064. Its totient is φ = 10879200.

The previous prime is 20536751. The next prime is 20536781. The reversal of 20536755 is 55763502.

It is not a de Polignac number, because 20536755 - 2² = 20536751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20536751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2269 + ... + 6798.

It is an arithmetic number, because the mean of its divisors is an integer number (2067504).

Almost surely, 2^20536755 is an apocalyptic number.

20536755 is a deficient number, since it is larger than the sum of its proper divisors (12543309).

20536755 is a wasteful number, since it uses less digits than its factorization.

20536755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9226.

The product of its (nonzero) digits is 31500, while the sum is 33.

The square root of 20536755 is about 4531.7496621062. The cubic root of 20536755 is about 273.8486519195.

The spelling of 20536755 in words is "twenty million, five hundred thirty-six thousand, seven hundred fifty-five".