22253513 has 4 divisors (see below), whose sum is σ = 22727040. Its totient is φ = 21779988.

The previous prime is 22253501. The next prime is 22253519. The reversal of 22253513 is 31535222.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31535222 = 2 ⋅15767611.

It is not a de Polignac number, because 22253513 - 2¹² = 22249417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22253519) 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, 236693 + ... + 236786.

It is an arithmetic number, because the mean of its divisors is an integer number (5681760).

Almost surely, 2^22253513 is an apocalyptic number.

It is an amenable number.

22253513 is a deficient number, since it is larger than the sum of its proper divisors (473527).

22253513 is an equidigital number, since it uses as much as digits as its factorization.

22253513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473526.

The product of its digits is 1800, while the sum is 23.

The square root of 22253513 is about 4717.3629285863. The cubic root of 22253513 is about 281.2761182000.

Adding to 22253513 its reverse (31535222), we get a palindrome (53788735).

It can be divided in two parts, 222 and 53513, that added together give a palindrome (53735).

The spelling of 22253513 in words is "twenty-two million, two hundred fifty-three thousand, five hundred thirteen".