225575076500 has 24 divisors (see below), whose sum is σ = 492655968168. Its totient is φ = 90230030400.

The previous prime is 225575076457. The next prime is 225575076509. The reversal of 225575076500 is 5670575522.

It can be written as a sum of positive squares in 4 ways, for example, as 1373584 + 225573702916 = 1172^2 + 474946^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225575076509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225574577 + ... + 225575576.

It is an arithmetic number, because the mean of its divisors is an integer number (20527332007).

Almost surely, 2^225575076500 is an apocalyptic number.

225575076500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225575076500 is an abundant number, since it is smaller than the sum of its proper divisors (267080891668).

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

225575076500 is a wasteful number, since it uses less digits than its factorization.

225575076500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451150172 (or 451150160 counting only the distinct ones).

The product of its (nonzero) digits is 735000, while the sum is 44.

The spelling of 225575076500 in words is "two hundred twenty-five billion, five hundred seventy-five million, seventy-six thousand, five hundred".