225840464509 has 8 divisors (see below), whose sum is σ = 247622034528. Its totient is φ = 204267330960.

The previous prime is 225840464491. The next prime is 225840464539. The reversal of 225840464509 is 905464048522.

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

It is not a de Polignac number, because 225840464509 - 2¹¹ = 225840462461 is a prime.

It is a super-2 number, since 2×225840464509² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225840464539) 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, 52106847 + ... + 52111180.

It is an arithmetic number, because the mean of its divisors is an integer number (30952754316).

Almost surely, 2^225840464509 is an apocalyptic number.

It is an amenable number.

225840464509 is a deficient number, since it is larger than the sum of its proper divisors (21781570019).

225840464509 is a wasteful number, since it uses less digits than its factorization.

225840464509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104218235.

The product of its (nonzero) digits is 2764800, while the sum is 49.

The spelling of 225840464509 in words is "two hundred twenty-five billion, eight hundred forty million, four hundred sixty-four thousand, five hundred nine".