225074472644 has 48 divisors (see below), whose sum is σ = 485398139520. Its totient is φ = 89154743040.

The previous prime is 225074472643. The next prime is 225074472647. The reversal of 225074472644 is 446274470522.

It is not an unprimeable number, because it can be changed into a prime (225074472643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5137607 + ... + 5181230.

It is an arithmetic number, because the mean of its divisors is an integer number (10112461240).

Almost surely, 2^225074472644 is an apocalyptic number.

It is an amenable number.

225074472644 is an abundant number, since it is smaller than the sum of its proper divisors (260323666876).

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

225074472644 is a wasteful number, since it uses less digits than its factorization.

225074472644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10318908 (or 10318906 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 47.

The spelling of 225074472644 in words is "two hundred twenty-five billion, seventy-four million, four hundred seventy-two thousand, six hundred forty-four".