22172853 has 4 divisors (see below), whose sum is σ = 29563808. Its totient is φ = 14781900.

The previous prime is 22172827. The next prime is 22172893. The reversal of 22172853 is 35827122.

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 22172853 - 2⁶ = 22172789 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22172853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22172893) 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, 3695473 + ... + 3695478.

It is an arithmetic number, because the mean of its divisors is an integer number (7390952).

Almost surely, 2^22172853 is an apocalyptic number.

It is an amenable number.

22172853 is a deficient number, since it is larger than the sum of its proper divisors (7390955).

22172853 is an equidigital number, since it uses as much as digits as its factorization.

22172853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7390954.

The product of its digits is 6720, while the sum is 30.

The square root of 22172853 is about 4708.8058995886. The cubic root of 22172853 is about 280.9358693246.

Adding to 22172853 its reverse (35827122), we get a palindrome (57999975).

The spelling of 22172853 in words is "twenty-two million, one hundred seventy-two thousand, eight hundred fifty-three".