22535401 has 4 divisors (see below), whose sum is σ = 25754752. Its totient is φ = 19316052.

The previous prime is 22535399. The next prime is 22535411. The reversal of 22535401 is 10453522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22535401 - 2¹ = 22535399 is a prime.

It is a super-3 number, since 3×22535401³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22535411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1609665 + ... + 1609678.

It is an arithmetic number, because the mean of its divisors is an integer number (6438688).

Almost surely, 2^22535401 is an apocalyptic number.

It is an amenable number.

22535401 is a deficient number, since it is larger than the sum of its proper divisors (3219351).

22535401 is an equidigital number, since it uses as much as digits as its factorization.

22535401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3219350.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 22535401 is about 4747.1466166530. The cubic root of 22535401 is about 282.4587915980.

Adding to 22535401 its reverse (10453522), we get a palindrome (32988923).

The spelling of 22535401 in words is "twenty-two million, five hundred thirty-five thousand, four hundred one".