225117225264648 has 32 divisors (see below), whose sum is σ = 562793438259360. Its totient is φ = 75039025075200.

The previous prime is 225117225264641. The next prime is 225117225264697. The reversal of 225117225264648 is 846462522711522.

It is a Cunningham number, because it is equal to 15003907²-1.

It is a super-2 number, since 2×225117225264648² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225117225264641) 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, 58140136 + ... + 61891112.

It is an arithmetic number, because the mean of its divisors is an integer number (17587294945605).

Almost surely, 2^{225117225264648} is an apocalyptic number.

It is an amenable number.

225117225264648 is an abundant number, since it is smaller than the sum of its proper divisors (337676212994712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225117225264648 is a wasteful number, since it uses less digits than its factorization.

225117225264648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6251637 (or 6251633 counting only the distinct ones).

The product of its digits is 25804800, while the sum is 57.

The spelling of 225117225264648 in words is "two hundred twenty-five trillion, one hundred seventeen billion, two hundred twenty-five million, two hundred sixty-four thousand, six hundred forty-eight".