225019923912 has 80 divisors (see below), whose sum is σ = 720301887360. Its totient is φ = 64291405536.

The previous prime is 225019923883. The next prime is 225019923917. The reversal of 225019923912 is 219329910522.

225019923912 is a `hidden beast` number, since 2 + 250 + 1 + 9 + 9 + 2 + 391 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (225019923917) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24799248 + ... + 24808319.

It is an arithmetic number, because the mean of its divisors is an integer number (9003773592).

Almost surely, 2^225019923912 is an apocalyptic number.

It is an amenable number.

225019923912 is an abundant number, since it is smaller than the sum of its proper divisors (495281963448).

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

225019923912 is a wasteful number, since it uses less digits than its factorization.

225019923912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49607592 (or 49607579 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The spelling of 225019923912 in words is "two hundred twenty-five billion, nineteen million, nine hundred twenty-three thousand, nine hundred twelve".