225717630405 has 32 divisors (see below), whose sum is σ = 370870824960. Its totient is φ = 117184791360.

The previous prime is 225717630401. The next prime is 225717630421. The reversal of 225717630405 is 504036717522.

It is not a de Polignac number, because 225717630405 - 2² = 225717630401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225717630401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1257267 + ... + 1425536.

It is an arithmetic number, because the mean of its divisors is an integer number (11589713280).

Almost surely, 2^225717630405 is an apocalyptic number.

It is an amenable number.

225717630405 is a deficient number, since it is larger than the sum of its proper divisors (145153194555).

225717630405 is a wasteful number, since it uses less digits than its factorization.

225717630405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682961.

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 225717630405 in words is "two hundred twenty-five billion, seven hundred seventeen million, six hundred thirty thousand, four hundred five".