225653727836 has 24 divisors (see below), whose sum is σ = 397136933424. Its totient is φ = 112187552000.

The previous prime is 225653727821. The next prime is 225653727839. The reversal of 225653727836 is 638727356522.

It is a super-2 number, since 2×225653727836² (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 (225653727839) 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, 405866 + ... + 784878.

It is an arithmetic number, because the mean of its divisors is an integer number (16547372226).

Almost surely, 2^225653727836 is an apocalyptic number.

It is an amenable number.

225653727836 is a deficient number, since it is larger than the sum of its proper divisors (171483205588).

225653727836 is a wasteful number, since it uses less digits than its factorization.

225653727836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379861 (or 379859 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 56.

The spelling of 225653727836 in words is "two hundred twenty-five billion, six hundred fifty-three million, seven hundred twenty-seven thousand, eight hundred thirty-six".