22449400523 has 4 divisors (see below), whose sum is σ = 24490255128. Its totient is φ = 20408545920.

The previous prime is 22449400517. The next prime is 22449400529. The reversal of 22449400523 is 32500494422.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22449400517) and next prime (22449400529).

It is a cyclic number.

It is not a de Polignac number, because 22449400523 - 2¹⁶ = 22449334987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22449400529) 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, 1020427286 + ... + 1020427307.

It is an arithmetic number, because the mean of its divisors is an integer number (6122563782).

Almost surely, 2^22449400523 is an apocalyptic number.

22449400523 is a deficient number, since it is larger than the sum of its proper divisors (2040854605).

22449400523 is a wasteful number, since it uses less digits than its factorization.

22449400523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040854604.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 22449400523 its reverse (32500494422), we get a palindrome (54949894945).

The spelling of 22449400523 in words is "twenty-two billion, four hundred forty-nine million, four hundred thousand, five hundred twenty-three".