225505819103506 has 16 divisors (see below), whose sum is σ = 342062543251800. Its totient is φ = 111484994721408.

The previous prime is 225505819103497. The next prime is 225505819103519. The reversal of 225505819103506 is 605301918505522.

It can be written as a sum of positive squares in 4 ways, for example, as 167913884669281 + 57591934434225 = 12958159^2 + 7588935^2 .

It is a super-2 number, since 2×225505819103506² (a number of 30 digits) contains 22 as substring.

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, 13695280 + ... + 25269988.

Almost surely, 2^{225505819103506} is an apocalyptic number.

225505819103506 is a deficient number, since it is larger than the sum of its proper divisors (116556724148294).

225505819103506 is a wasteful number, since it uses less digits than its factorization.

225505819103506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11684253.

The product of its (nonzero) digits is 3240000, while the sum is 52.

The spelling of 225505819103506 in words is "two hundred twenty-five trillion, five hundred five billion, eight hundred nineteen million, one hundred three thousand, five hundred six".