225311335540 has 24 divisors (see below), whose sum is σ = 476557794720. Its totient is φ = 89476155168.

The previous prime is 225311335519. The next prime is 225311335567. The reversal of 225311335540 is 45533113522.

It is a junction number, because it is equal to n+sod(n) for n = 225311335496 and 225311335505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40520842 + ... + 40526401.

It is an arithmetic number, because the mean of its divisors is an integer number (19856574780).

Almost surely, 2^225311335540 is an apocalyptic number.

225311335540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225311335540 is an abundant number, since it is smaller than the sum of its proper divisors (251246459180).

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

225311335540 is a wasteful number, since it uses less digits than its factorization.

225311335540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81047391 (or 81047389 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 34.

The spelling of 225311335540 in words is "two hundred twenty-five billion, three hundred eleven million, three hundred thirty-five thousand, five hundred forty".