225249284491 has 8 divisors (see below), whose sum is σ = 280830276864. Its totient is φ = 175518922920.

The previous prime is 225249284459. The next prime is 225249284539. The reversal of 225249284491 is 194482942522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225249284491 - 2⁵ = 225249284459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225249284401) 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, 1462657615 + ... + 1462657768.

It is an arithmetic number, because the mean of its divisors is an integer number (35103784608).

Almost surely, 2^225249284491 is an apocalyptic number.

225249284491 is a deficient number, since it is larger than the sum of its proper divisors (55580992373).

225249284491 is a wasteful number, since it uses less digits than its factorization.

225249284491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2925315401.

The product of its digits is 3317760, while the sum is 52.

The spelling of 225249284491 in words is "two hundred twenty-five billion, two hundred forty-nine million, two hundred eighty-four thousand, four hundred ninety-one".