225251544 has 64 divisors (see below), whose sum is σ = 658563840. Its totient is φ = 62858880.

The previous prime is 225251539. The next prime is 225251563. The reversal of 225251544 is 445152522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8367 + ... + 22814.

It is an arithmetic number, because the mean of its divisors is an integer number (10290060).

Almost surely, 2^225251544 is an apocalyptic number.

225251544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

225251544 is an abundant number, since it is smaller than the sum of its proper divisors (433312296).

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

225251544 is a wasteful number, since it uses less digits than its factorization.

225251544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31240 (or 31236 counting only the distinct ones).

The product of its digits is 16000, while the sum is 30.

The square root of 225251544 is about 15008.3824578134. The cubic root of 225251544 is about 608.4467731319.

The spelling of 225251544 in words is "two hundred twenty-five million, two hundred fifty-one thousand, five hundred forty-four".