22523133494 has 4 divisors (see below), whose sum is σ = 33784700244. Its totient is φ = 11261566746.

The previous prime is 22523133481. The next prime is 22523133551. The reversal of 22523133494 is 49433132522.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5630783372 + ... + 5630783375.

It is an arithmetic number, because the mean of its divisors is an integer number (8446175061).

Almost surely, 2^22523133494 is an apocalyptic number.

22523133494 is a deficient number, since it is larger than the sum of its proper divisors (11261566750).

22523133494 is a wasteful number, since it uses less digits than its factorization.

22523133494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11261566749.

The product of its digits is 155520, while the sum is 38.

The spelling of 22523133494 in words is "twenty-two billion, five hundred twenty-three million, one hundred thirty-three thousand, four hundred ninety-four".