223520125 has 16 divisors (see below), whose sum is σ = 279472752. Its totient is φ = 178483200.

The previous prime is 223520119. The next prime is 223520153. The reversal of 223520125 is 521025322.

It can be written as a sum of positive squares in 8 ways, for example, as 74753316 + 148766809 = 8646^2 + 12197^2 .

It is not a de Polignac number, because 223520125 - 2³ = 223520117 is a prime.

It is a super-2 number, since 2×223520125² = 99922492560031250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223520096 and 223520105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82797 + ... + 85453.

It is an arithmetic number, because the mean of its divisors is an integer number (17467047).

Almost surely, 2^223520125 is an apocalyptic number.

223520125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

223520125 is a deficient number, since it is larger than the sum of its proper divisors (55952627).

223520125 is an equidigital number, since it uses as much as digits as its factorization.

223520125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345 (or 3335 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 223520125 is about 14950.5894532624. The cubic root of 223520125 is about 606.8837988551.

Adding to 223520125 its reverse (521025322), we get a palindrome (744545447).

The spelling of 223520125 in words is "two hundred twenty-three million, five hundred twenty thousand, one hundred twenty-five".