22421253 has 8 divisors (see below), whose sum is σ = 30074688. Its totient is φ = 14857664.

The previous prime is 22421233. The next prime is 22421281. The reversal of 22421253 is 35212422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22421253 - 2⁸ = 22420997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22421233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21876 + ... + 22877.

It is an arithmetic number, because the mean of its divisors is an integer number (3759336).

Almost surely, 2^22421253 is an apocalyptic number.

It is an amenable number.

22421253 is a deficient number, since it is larger than the sum of its proper divisors (7653435).

22421253 is a wasteful number, since it uses less digits than its factorization.

22421253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44923.

The product of its digits is 960, while the sum is 21.

The square root of 22421253 is about 4735.1085520820. The cubic root of 22421253 is about 281.9810736254.

Adding to 22421253 its reverse (35212422), we get a palindrome (57633675).

The spelling of 22421253 in words is "twenty-two million, four hundred twenty-one thousand, two hundred fifty-three".