223115525 has 24 divisors (see below), whose sum is σ = 298028544. Its totient is φ = 165211200.

The previous prime is 223115509. The next prime is 223115549. The reversal of 223115525 is 525511322.

It is not a de Polignac number, because 223115525 - 2⁴ = 223115509 is a prime.

It is a super-3 number, since 3×223115525³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223115494 and 223115503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11567 + ... + 24083.

It is an arithmetic number, because the mean of its divisors is an integer number (12417856).

Almost surely, 2^223115525 is an apocalyptic number.

223115525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

223115525 is a deficient number, since it is larger than the sum of its proper divisors (74913019).

223115525 is a wasteful number, since it uses less digits than its factorization.

223115525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12581 (or 12576 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 223115525 is about 14937.0520853346. The cubic root of 223115525 is about 606.5173986034.

Adding to 223115525 its reverse (525511322), we get a palindrome (748626847).

The spelling of 223115525 in words is "two hundred twenty-three million, one hundred fifteen thousand, five hundred twenty-five".