22540322425 has 12 divisors (see below), whose sum is σ = 28851613696. Its totient is φ = 17450571600.

The previous prime is 22540322407. The next prime is 22540322429. The reversal of 22540322425 is 52422304522.

It is not a de Polignac number, because 22540322425 - 2⁵ = 22540322393 is a prime.

It is a super-2 number, since 2×22540322425² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (22540322429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14541369 + ... + 14542918.

Almost surely, 2^22540322425 is an apocalyptic number.

22540322425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22540322425 is a deficient number, since it is larger than the sum of its proper divisors (6311291271).

22540322425 is a wasteful number, since it uses less digits than its factorization.

22540322425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29084328 (or 29084323 counting only the distinct ones).

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

Adding to 22540322425 its reverse (52422304522), we get a palindrome (74962626947).

The spelling of 22540322425 in words is "twenty-two billion, five hundred forty million, three hundred twenty-two thousand, four hundred twenty-five".