225930938391 has 16 divisors (see below), whose sum is σ = 336844434400. Its totient is φ = 149661255744.

The previous prime is 225930938347. The next prime is 225930938407. The reversal of 225930938391 is 193839039522.

It is a happy number.

225930938391 is a `hidden beast` number, since 2 + 259 + 3 + 0 + 9 + 383 + 9 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-225930938391 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 (225930938591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26644846 + ... + 26653323.

It is an arithmetic number, because the mean of its divisors is an integer number (21052777150).

Almost surely, 2^225930938391 is an apocalyptic number.

225930938391 is a deficient number, since it is larger than the sum of its proper divisors (110913496009).

225930938391 is a wasteful number, since it uses less digits than its factorization.

225930938391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53298335 (or 53298329 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 54.

The spelling of 225930938391 in words is "two hundred twenty-five billion, nine hundred thirty million, nine hundred thirty-eight thousand, three hundred ninety-one".