225235877633 has 4 divisors (see below), whose sum is σ = 242561714388. Its totient is φ = 207910040880.

The previous prime is 225235877627. The next prime is 225235877651. The reversal of 225235877633 is 336778532522.

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

It can be written as a sum of positive squares in 2 ways, for example, as 135447553024 + 89788324609 = 368032^2 + 299647^2 .

It is a cyclic number.

It is not a de Polignac number, because 225235877633 - 2²² = 225231683329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225235877653) 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, 8662918358 + ... + 8662918383.

It is an arithmetic number, because the mean of its divisors is an integer number (60640428597).

Almost surely, 2^225235877633 is an apocalyptic number.

It is an amenable number.

225235877633 is a deficient number, since it is larger than the sum of its proper divisors (17325836755).

225235877633 is a wasteful number, since it uses less digits than its factorization.

225235877633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17325836754.

The product of its digits is 12700800, while the sum is 53.

The spelling of 225235877633 in words is "two hundred twenty-five billion, two hundred thirty-five million, eight hundred seventy-seven thousand, six hundred thirty-three".