22505540032430 has 128 divisors (see below), whose sum is σ = 52486169702400. Its totient is φ = 6747292306944.

The previous prime is 22505540032321. The next prime is 22505540032439. The reversal of 22505540032430 is 3423004550522.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22505540032439) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 315039956 + ... + 315111384.

It is an arithmetic number, because the mean of its divisors is an integer number (410048200800).

Almost surely, 2^{22505540032430} is an apocalyptic number.

22505540032430 is an abundant number, since it is smaller than the sum of its proper divisors (29980629669970).

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

22505540032430 is a wasteful number, since it uses less digits than its factorization.

22505540032430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89698.

The product of its (nonzero) digits is 144000, while the sum is 35.

Adding to 22505540032430 its reverse (3423004550522), we get a palindrome (25928544582952).

The spelling of 22505540032430 in words is "twenty-two trillion, five hundred five billion, five hundred forty million, thirty-two thousand, four hundred thirty".