225719207791 has 16 divisors (see below), whose sum is σ = 281698513920. Its totient is φ = 175708622880.

The previous prime is 225719207789. The next prime is 225719207797. The reversal of 225719207791 is 197702917522.

It is not a de Polignac number, because 225719207791 - 2¹ = 225719207789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225719207797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1393351 + ... + 1546888.

It is an arithmetic number, because the mean of its divisors is an integer number (17606157120).

Almost surely, 2^225719207791 is an apocalyptic number.

225719207791 is a deficient number, since it is larger than the sum of its proper divisors (55979306129).

225719207791 is a wasteful number, since it uses less digits than its factorization.

225719207791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2941254.

The product of its (nonzero) digits is 1111320, while the sum is 52.

The spelling of 225719207791 in words is "two hundred twenty-five billion, seven hundred nineteen million, two hundred seven thousand, seven hundred ninety-one".