22425520423 has 4 divisors (see below), whose sum is σ = 22550802840. Its totient is φ = 22300238008.

The previous prime is 22425520387. The next prime is 22425520457. The reversal of 22425520423 is 32402552422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32402552422 = 2 ⋅16201276211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22425520423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22425520123) 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, 62640940 + ... + 62641297.

It is an arithmetic number, because the mean of its divisors is an integer number (5637700710).

Almost surely, 2^22425520423 is an apocalyptic number.

22425520423 is a deficient number, since it is larger than the sum of its proper divisors (125282417).

22425520423 is a wasteful number, since it uses less digits than its factorization.

22425520423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125282416.

The product of its (nonzero) digits is 38400, while the sum is 31.

The spelling of 22425520423 in words is "twenty-two billion, four hundred twenty-five million, five hundred twenty thousand, four hundred twenty-three".