225054440251 has 4 divisors (see below), whose sum is σ = 225207435904. Its totient is φ = 224901444600.

The previous prime is 225054440239. The next prime is 225054440287. The reversal of 225054440251 is 152044450522.

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 225054440251 - 2²⁷ = 224920222523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225054440851) 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, 76495620 + ... + 76498561.

It is an arithmetic number, because the mean of its divisors is an integer number (56301858976).

Almost surely, 2^225054440251 is an apocalyptic number.

225054440251 is a deficient number, since it is larger than the sum of its proper divisors (152995653).

225054440251 is a wasteful number, since it uses less digits than its factorization.

225054440251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152995652.

The product of its (nonzero) digits is 64000, while the sum is 34.

Adding to 225054440251 its reverse (152044450522), we get a palindrome (377098890773).

The spelling of 225054440251 in words is "two hundred twenty-five billion, fifty-four million, four hundred forty thousand, two hundred fifty-one".