22431325525 has 24 divisors (see below), whose sum is σ = 31896958464. Its totient is φ = 15328948800.

The previous prime is 22431325489. The next prime is 22431325531. The reversal of 22431325525 is 52552313422.

It is not a de Polignac number, because 22431325525 - 2¹³ = 22431317333 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 167461 + ... + 270010.

It is an arithmetic number, because the mean of its divisors is an integer number (1329039936).

Almost surely, 2^22431325525 is an apocalyptic number.

22431325525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22431325525 is a deficient number, since it is larger than the sum of its proper divisors (9465632939).

22431325525 is a wasteful number, since it uses less digits than its factorization.

22431325525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437781 (or 437776 counting only the distinct ones).

The product of its digits is 72000, while the sum is 34.

Adding to 22431325525 its reverse (52552313422), we get a palindrome (74983638947).

The spelling of 22431325525 in words is "twenty-two billion, four hundred thirty-one million, three hundred twenty-five thousand, five hundred twenty-five".