225517075518 has 32 divisors (see below), whose sum is σ = 523917895680. Its totient is φ = 63377163360.

The previous prime is 225517075513. The next prime is 225517075523. The reversal of 225517075518 is 815570715522.

It is an interprime number because it is at equal distance from previous prime (225517075513) and next prime (225517075523).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225517075513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44009358 + ... + 44014481.

It is an arithmetic number, because the mean of its divisors is an integer number (16372434240).

Almost surely, 2^225517075518 is an apocalyptic number.

225517075518 is an abundant number, since it is smaller than the sum of its proper divisors (298400820162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225517075518 is a wasteful number, since it uses less digits than its factorization.

225517075518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88023912.

The product of its (nonzero) digits is 980000, while the sum is 48.

The spelling of 225517075518 in words is "two hundred twenty-five billion, five hundred seventeen million, seventy-five thousand, five hundred eighteen".