225593397919 has 8 divisors (see below), whose sum is σ = 225744330240. Its totient is φ = 225442514136.

The previous prime is 225593397893. The next prime is 225593397937. The reversal of 225593397919 is 919793395522.

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

It is a 3-Lehmer number, since φ(225593397919) divides (225593397919-1)³.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 225593397919 - 2⁷ = 225593397791 is a prime.

It is a super-2 number, since 2×225593397919² (a number of 24 digits) contains 22 as substring.

It is a deceptive number, since it divides R_225593397918.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225593397949) by changing a digit.

It is a Zeisel number, with parameters (2, 2205).

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14600412 + ... + 14615854.

It is an arithmetic number, because the mean of its divisors is an integer number (28218041280).

It is a Poulet number, since it divides 2^225593397918-1.

Almost surely, 2^225593397919 is an apocalyptic number.

225593397919 is a deficient number, since it is larger than the sum of its proper divisors (150932321).

225593397919 is a wasteful number, since it uses less digits than its factorization.

225593397919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24269.

The product of its digits is 41334300, while the sum is 64.

The spelling of 225593397919 in words is "two hundred twenty-five billion, five hundred ninety-three million, three hundred ninety-seven thousand, nine hundred nineteen".