22320452525 has 24 divisors (see below), whose sum is σ = 31769454720. Its totient is φ = 15238589760.

The previous prime is 22320452519. The next prime is 22320452537. The reversal of 22320452525 is 52525402322.

It is not a de Polignac number, because 22320452525 - 2⁶ = 22320452461 is a prime.

It is a super-3 number, since 3×22320452525³ (a number of 32 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22320452491 and 22320452500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238409 + ... + 318558.

It is an arithmetic number, because the mean of its divisors is an integer number (1323727280).

Almost surely, 2^22320452525 is an apocalyptic number.

22320452525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22320452525 is a deficient number, since it is larger than the sum of its proper divisors (9449002195).

22320452525 is a wasteful number, since it uses less digits than its factorization.

22320452525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557213 (or 557208 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 32.

Adding to 22320452525 its reverse (52525402322), we get a palindrome (74845854847).

The spelling of 22320452525 in words is "twenty-two billion, three hundred twenty million, four hundred fifty-two thousand, five hundred twenty-five".