225771744 has 48 divisors (see below), whose sum is σ = 646531200. Its totient is φ = 68415360.

The previous prime is 225771697. The next prime is 225771751. The reversal of 225771744 is 447177522.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105844 + ... + 107955.

It is an arithmetic number, because the mean of its divisors is an integer number (13469400).

Almost surely, 2^225771744 is an apocalyptic number.

225771744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

225771744 is an abundant number, since it is smaller than the sum of its proper divisors (420759456).

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

225771744 is a wasteful number, since it uses less digits than its factorization.

225771744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213823 (or 213815 counting only the distinct ones).

The product of its digits is 109760, while the sum is 39.

The square root of 225771744 is about 15025.7027789052. The cubic root of 225771744 is about 608.9147990308.

The spelling of 225771744 in words is "two hundred twenty-five million, seven hundred seventy-one thousand, seven hundred forty-four".