225721477574 has 16 divisors (see below), whose sum is σ = 342120094848. Its totient is φ = 111681768192.

The previous prime is 225721477567. The next prime is 225721477589. The reversal of 225721477574 is 475774127522.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1394384 + ... + 1547820.

It is an arithmetic number, because the mean of its divisors is an integer number (21382505928).

Almost surely, 2^225721477574 is an apocalyptic number.

225721477574 is a deficient number, since it is larger than the sum of its proper divisors (116398617274).

225721477574 is a wasteful number, since it uses less digits than its factorization.

225721477574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161119.

The product of its digits is 7683200, while the sum is 53.

The spelling of 225721477574 in words is "two hundred twenty-five billion, seven hundred twenty-one million, four hundred seventy-seven thousand, five hundred seventy-four".