225658087 has 4 divisors (see below), whose sum is σ = 225728856. Its totient is φ = 225587320.

The previous prime is 225658073. The next prime is 225658091. The reversal of 225658087 is 780856522.

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-225658087 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 (225658007) 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, 30364 + ... + 37057.

It is an arithmetic number, because the mean of its divisors is an integer number (56432214).

Almost surely, 2^225658087 is an apocalyptic number.

225658087 is a deficient number, since it is larger than the sum of its proper divisors (70769).

225658087 is an equidigital number, since it uses as much as digits as its factorization.

225658087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70768.

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 225658087 is about 15021.9202168032. The cubic root of 225658087 is about 608.8126028264.

The spelling of 225658087 in words is "two hundred twenty-five million, six hundred fifty-eight thousand, eighty-seven".