20535022 has 4 divisors (see below), whose sum is σ = 30802536. Its totient is φ = 10267510.

The previous prime is 20535013. The next prime is 20535043. The reversal of 20535022 is 22053502.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22053502 = 2 ⋅11026751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5133754 + ... + 5133757.

It is an arithmetic number, because the mean of its divisors is an integer number (7700634).

Almost surely, 2^20535022 is an apocalyptic number.

20535022 is a deficient number, since it is larger than the sum of its proper divisors (10267514).

20535022 is a wasteful number, since it uses less digits than its factorization.

20535022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10267513.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 20535022 is about 4531.5584515705. The cubic root of 20535022 is about 273.8409487703.

Adding to 20535022 its reverse (22053502), we get a palindrome (42588524).

The spelling of 20535022 in words is "twenty million, five hundred thirty-five thousand, twenty-two".