22532023421 has 4 divisors (see below), whose sum is σ = 22532533344. Its totient is φ = 22531513500.

The previous prime is 22532023403. The next prime is 22532023433. The reversal of 22532023421 is 12432023522.

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 a cyclic number.

It is not a de Polignac number, because 22532023421 - 2⁶ = 22532023357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22532023471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181655 + ... + 279396.

It is an arithmetic number, because the mean of its divisors is an integer number (5633133336).

Almost surely, 2^22532023421 is an apocalyptic number.

It is an amenable number.

22532023421 is a deficient number, since it is larger than the sum of its proper divisors (509923).

22532023421 is an equidigital number, since it uses as much as digits as its factorization.

22532023421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509922.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 22532023421 its reverse (12432023522), we get a palindrome (34964046943).

The spelling of 22532023421 in words is "twenty-two billion, five hundred thirty-two million, twenty-three thousand, four hundred twenty-one".