20852535 has 24 divisors (see below), whose sum is σ = 36676080. Its totient is φ = 10109440.

The previous prime is 20852521. The next prime is 20852539. The reversal of 20852535 is 53525802.

It is not a de Polignac number, because 20852535 - 2⁶ = 20852471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20852539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3930 + ... + 7559.

It is an arithmetic number, because the mean of its divisors is an integer number (1528170).

Almost surely, 2^20852535 is an apocalyptic number.

20852535 is a deficient number, since it is larger than the sum of its proper divisors (15823545).

20852535 is a wasteful number, since it uses less digits than its factorization.

20852535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11519 (or 11508 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 20852535 is about 4566.4575986206. The cubic root of 20852535 is about 275.2451147911.

The spelling of 20852535 in words is "twenty million, eight hundred fifty-two thousand, five hundred thirty-five".