223155525 has 24 divisors (see below), whose sum is σ = 374013760. Its totient is φ = 117383040.

The previous prime is 223155521. The next prime is 223155529. The reversal of 223155525 is 525551322.

It is an interprime number because it is at equal distance from previous prime (223155521) and next prime (223155529).

It is not a de Polignac number, because 223155525 - 2² = 223155521 is a prime.

It is a super-3 number, since 3×223155525³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223155492 and 223155501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223155521) by changing a digit.

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, 14905 + ... + 25854.

Almost surely, 2^223155525 is an apocalyptic number.

223155525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

223155525 is a deficient number, since it is larger than the sum of its proper divisors (150858235).

223155525 is a wasteful number, since it uses less digits than its factorization.

223155525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40845 (or 40840 counting only the distinct ones).

The product of its digits is 15000, while the sum is 30.

The square root of 223155525 is about 14938.3909776120. The cubic root of 223155525 is about 606.5536417802.

The spelling of 223155525 in words is "two hundred twenty-three million, one hundred fifty-five thousand, five hundred twenty-five".