225521037424 has 10 divisors (see below), whose sum is σ = 436947010040. Its totient is φ = 112760518704.

The previous prime is 225521037397. The next prime is 225521037433. The reversal of 225521037424 is 424730125522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7047532404 + ... + 7047532435.

It is an arithmetic number, because the mean of its divisors is an integer number (43694701004).

Almost surely, 2^225521037424 is an apocalyptic number.

It is an amenable number.

225521037424 is a deficient number, since it is larger than the sum of its proper divisors (211425972616).

225521037424 is a wasteful number, since it uses less digits than its factorization.

225521037424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14095064847 (or 14095064841 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 37.

The spelling of 225521037424 in words is "two hundred twenty-five billion, five hundred twenty-one million, thirty-seven thousand, four hundred twenty-four".