225504887 has 4 divisors (see below), whose sum is σ = 225862896. Its totient is φ = 225146880.

The previous prime is 225504833. The next prime is 225504889. The reversal of 225504887 is 788405522.

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 225504887 - 2²⁰ = 224456311 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 (225504889) 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, 178058 + ... + 179319.

It is an arithmetic number, because the mean of its divisors is an integer number (56465724).

Almost surely, 2^225504887 is an apocalyptic number.

225504887 is a deficient number, since it is larger than the sum of its proper divisors (358009).

225504887 is an equidigital number, since it uses as much as digits as its factorization.

225504887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358008.

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 225504887 is about 15016.8201361007. The cubic root of 225504887 is about 608.6747966922.

The spelling of 225504887 in words is "two hundred twenty-five million, five hundred four thousand, eight hundred eighty-seven".