225272519 has 4 divisors (see below), whose sum is σ = 225649200. Its totient is φ = 224895840.

The previous prime is 225272513. The next prime is 225272527. The reversal of 225272519 is 915272522.

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

It is a cyclic number.

It is not a de Polignac number, because 225272519 - 2¹² = 225268423 is a prime.

It is a super-2 number, since 2×225272519² = 101495415633210722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225272513) 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, 187442 + ... + 188639.

It is an arithmetic number, because the mean of its divisors is an integer number (56412300).

Almost surely, 2^225272519 is an apocalyptic number.

225272519 is a deficient number, since it is larger than the sum of its proper divisors (376681).

225272519 is an equidigital number, since it uses as much as digits as its factorization.

225272519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376680.

The product of its digits is 25200, while the sum is 35.

The square root of 225272519 is about 15009.0812177162. The cubic root of 225272519 is about 608.4656583520.

The spelling of 225272519 in words is "two hundred twenty-five million, two hundred seventy-two thousand, five hundred nineteen".