225491044351 has 4 divisors (see below), whose sum is σ = 225536667552. Its totient is φ = 225445421152.

The previous prime is 225491044333. The next prime is 225491044379. The reversal of 225491044351 is 153440194522.

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 225491044351 - 2²¹ = 225488947199 is a prime.

It is a super-2 number, since 2×225491044351² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225491044391) 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, 22804186 + ... + 22814071.

It is an arithmetic number, because the mean of its divisors is an integer number (56384166888).

Almost surely, 2^225491044351 is an apocalyptic number.

225491044351 is a deficient number, since it is larger than the sum of its proper divisors (45623201).

225491044351 is an equidigital number, since it uses as much as digits as its factorization.

225491044351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45623200.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 225491044351 in words is "two hundred twenty-five billion, four hundred ninety-one million, forty-four thousand, three hundred fifty-one".