22543053420 has 24 divisors (see below), whose sum is σ = 63120549744. Its totient is φ = 6011480896.

The previous prime is 22543053419. The next prime is 22543053431. The reversal of 22543053420 is 2435034522.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187858719 + ... + 187858838.

It is an arithmetic number, because the mean of its divisors is an integer number (2630022906).

Almost surely, 2^22543053420 is an apocalyptic number.

22543053420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22543053420 is an abundant number, since it is smaller than the sum of its proper divisors (40577496324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22543053420 is a wasteful number, since it uses less digits than its factorization.

22543053420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375717569 (or 375717567 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 22543053420 its reverse (2435034522), we get a palindrome (24978087942).

The spelling of 22543053420 in words is "twenty-two billion, five hundred forty-three million, fifty-three thousand, four hundred twenty".