225651512740 has 12 divisors (see below), whose sum is σ = 473868176796. Its totient is φ = 90260605088.

The previous prime is 225651512731. The next prime is 225651512773. The reversal of 225651512740 is 47215156522.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 174831024384 + 50820488356 = 418128^2 + 225434^2 .

It is a junction number, because it is equal to n+sod(n) for n = 225651512693 and 225651512702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5641287799 + ... + 5641287838.

It is an arithmetic number, because the mean of its divisors is an integer number (39489014733).

Almost surely, 2^225651512740 is an apocalyptic number.

225651512740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225651512740 is an abundant number, since it is smaller than the sum of its proper divisors (248216664056).

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

225651512740 is a wasteful number, since it uses less digits than its factorization.

225651512740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11282575646 (or 11282575644 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 225651512740 in words is "two hundred twenty-five billion, six hundred fifty-one million, five hundred twelve thousand, seven hundred forty".