223905725 has 12 divisors (see below), whose sum is σ = 293975604. Its totient is φ = 168587520.

The previous prime is 223905719. The next prime is 223905733. The reversal of 223905725 is 527509322.

It can be written as a sum of positive squares in 6 ways, for example, as 8491396 + 215414329 = 2914^2 + 14677^2 .

It is not a de Polignac number, because 223905725 - 2¹⁶ = 223840189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 262994 + ... + 263843.

It is an arithmetic number, because the mean of its divisors is an integer number (24497967).

Almost surely, 2^223905725 is an apocalyptic number.

223905725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

223905725 is a deficient number, since it is larger than the sum of its proper divisors (70069879).

223905725 is a wasteful number, since it uses less digits than its factorization.

223905725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526864 (or 526859 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 223905725 is about 14963.4797089447. The cubic root of 223905725 is about 607.2325816977.

The spelling of 223905725 in words is "two hundred twenty-three million, nine hundred five thousand, seven hundred twenty-five".