22523623 has 8 divisors (see below), whose sum is σ = 23941440. Its totient is φ = 21116160.

The previous prime is 22523609. The next prime is 22523653. The reversal of 22523623 is 32632522.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22523623 is a prime.

It is a super-2 number, since 2×22523623² = 1014627186092258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22523603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2163 + ... + 7051.

It is an arithmetic number, because the mean of its divisors is an integer number (2992680).

Almost surely, 2^22523623 is an apocalyptic number.

22523623 is a deficient number, since it is larger than the sum of its proper divisors (1417817).

22523623 is a wasteful number, since it uses less digits than its factorization.

22523623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5177.

The product of its digits is 4320, while the sum is 25.

The square root of 22523623 is about 4745.9059198429. The cubic root of 22523623 is about 282.4095745255.

The spelling of 22523623 in words is "twenty-two million, five hundred twenty-three thousand, six hundred twenty-three".