225253439 has 4 divisors (see below), whose sum is σ = 226555656. Its totient is φ = 223951224.

The previous prime is 225253387. The next prime is 225253453. The reversal of 225253439 is 934352522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225253439 is a prime.

It is a super-2 number, since 2×225253439² = 101478223562653442, 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 = 225253399 and 225253408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225253459) 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, 650849 + ... + 651194.

It is an arithmetic number, because the mean of its divisors is an integer number (56638914).

Almost surely, 2^225253439 is an apocalyptic number.

225253439 is a deficient number, since it is larger than the sum of its proper divisors (1302217).

225253439 is a wasteful number, since it uses less digits than its factorization.

225253439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302216.

The product of its digits is 64800, while the sum is 35.

The square root of 225253439 is about 15008.4455890675. The cubic root of 225253439 is about 608.4484793775.

The spelling of 225253439 in words is "two hundred twenty-five million, two hundred fifty-three thousand, four hundred thirty-nine".