223700725 has 18 divisors (see below), whose sum is σ = 282674306. Its totient is φ = 175567200.

The previous prime is 223700717. The next prime is 223700747. The reversal of 223700725 is 527007322.

It can be written as a sum of positive squares in 3 ways, for example, as 586756 + 223113969 = 766^2 + 14937^2 .

It is not a de Polignac number, because 223700725 - 2³ = 223700717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223700693 and 223700702.

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 17 ways as a sum of consecutive naturals, for example, 583884 + ... + 584266.

Almost surely, 2^223700725 is an apocalyptic number.

223700725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

223700725 is a deficient number, since it is larger than the sum of its proper divisors (58973581).

223700725 is an frugal number, since it uses more digits than its factorization.

223700725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 223700725 is about 14956.6281293612. The cubic root of 223700725 is about 607.0472050335.

The spelling of 223700725 in words is "two hundred twenty-three million, seven hundred thousand, seven hundred twenty-five".