225636438343700 has 18 divisors (see below), whose sum is σ = 489631071206046. Its totient is φ = 90254575337440.

The previous prime is 225636438343699. The next prime is 225636438343741. The reversal of 225636438343700 is 7343834636522.

It can be written as a sum of positive squares in 3 ways, for example, as 41997839369476 + 183638598974224 = 6480574^2 + 13551332^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1128182191619 + ... + 1128182191818.

Almost surely, 2^{225636438343700} is an apocalyptic number.

225636438343700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225636438343700 is an abundant number, since it is smaller than the sum of its proper divisors (263994632862346).

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

225636438343700 is a wasteful number, since it uses less digits than its factorization.

225636438343700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256364383451 (or 2256364383444 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 56.

The spelling of 225636438343700 in words is "two hundred twenty-five trillion, six hundred thirty-six billion, four hundred thirty-eight million, three hundred forty-three thousand, seven hundred".