22520432351 has 4 divisors (see below), whose sum is σ = 22566299304. Its totient is φ = 22474565400.

The previous prime is 22520432239. The next prime is 22520432383. The reversal of 22520432351 is 15323402522.

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

It is a cyclic number.

It is not a de Polignac number, because 22520432351 - 2³⁴ = 5340563167 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 (22522432351) 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, 22932740 + ... + 22933721.

It is an arithmetic number, because the mean of its divisors is an integer number (5641574826).

Almost surely, 2^22520432351 is an apocalyptic number.

22520432351 is a deficient number, since it is larger than the sum of its proper divisors (45866953).

22520432351 is an equidigital number, since it uses as much as digits as its factorization.

22520432351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45866952.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 22520432351 its reverse (15323402522), we get a palindrome (37843834873).

The spelling of 22520432351 in words is "twenty-two billion, five hundred twenty million, four hundred thirty-two thousand, three hundred fifty-one".