22535819 has 2 divisors, whose sum is σ = 22535820. Its totient is φ = 22535818.

The previous prime is 22535809. The next prime is 22535833. The reversal of 22535819 is 91853522.

22535819 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22535819 - 2¹² = 22531723 is a prime.

It is a super-2 number, since 2×22535819² = 1015726276001522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22535809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11267909 + 11267910.

It is an arithmetic number, because the mean of its divisors is an integer number (11267910).

Almost surely, 2^22535819 is an apocalyptic number.

22535819 is a deficient number, since it is larger than the sum of its proper divisors (1).

22535819 is an equidigital number, since it uses as much as digits as its factorization.

22535819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 35.

The square root of 22535819 is about 4747.1906428961. The cubic root of 22535819 is about 282.4605379917.

The spelling of 22535819 in words is "twenty-two million, five hundred thirty-five thousand, eight hundred nineteen".