225204983 has 4 divisors (see below), whose sum is σ = 234996528. Its totient is φ = 215413440.

The previous prime is 225204961. The next prime is 225204989. The reversal of 225204983 is 389402522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 389402522 = 2 ⋅194701261.

It is a cyclic number.

It is not a de Polignac number, because 225204983 - 2¹⁰ = 225203959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225204989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4895738 + ... + 4895783.

It is an arithmetic number, because the mean of its divisors is an integer number (58749132).

Almost surely, 2^225204983 is an apocalyptic number.

225204983 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

225204983 is a deficient number, since it is larger than the sum of its proper divisors (9791545).

225204983 is an equidigital number, since it uses as much as digits as its factorization.

225204983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9791544.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 225204983 is about 15006.8312111518. The cubic root of 225204983 is about 608.4048469044.

The spelling of 225204983 in words is "two hundred twenty-five million, two hundred four thousand, nine hundred eighty-three".