225623642740 has 12 divisors (see below), whose sum is σ = 473809649796. Its totient is φ = 90249457088.

The previous prime is 225623642729. The next prime is 225623642743. The reversal of 225623642740 is 47246326522.

It is a happy number.

225623642740 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 29668684516 + 195954958224 = 172246^2 + 442668^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225623642743) by changing a digit.

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, 5640591049 + ... + 5640591088.

It is an arithmetic number, because the mean of its divisors is an integer number (39484137483).

Almost surely, 2^225623642740 is an apocalyptic number.

225623642740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225623642740 is an abundant number, since it is smaller than the sum of its proper divisors (248186007056).

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

225623642740 is a wasteful number, since it uses less digits than its factorization.

225623642740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11281182146 (or 11281182144 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 43.

The spelling of 225623642740 in words is "two hundred twenty-five billion, six hundred twenty-three million, six hundred forty-two thousand, seven hundred forty".