225753591 has 16 divisors (see below), whose sum is σ = 364241664. Its totient is φ = 121413504.

The previous prime is 225753589. The next prime is 225753601. The reversal of 225753591 is 195357522.

It is not a de Polignac number, because 225753591 - 2¹ = 225753589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225753551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315825 + ... + 316538.

It is an arithmetic number, because the mean of its divisors is an integer number (22765104).

Almost surely, 2^225753591 is an apocalyptic number.

225753591 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

225753591 is a deficient number, since it is larger than the sum of its proper divisors (138488073).

225753591 is a wasteful number, since it uses less digits than its factorization.

225753591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632390.

The product of its digits is 94500, while the sum is 39.

The square root of 225753591 is about 15025.0987018389. The cubic root of 225753591 is about 608.8984788211.

The spelling of 225753591 in words is "two hundred twenty-five million, seven hundred fifty-three thousand, five hundred ninety-one".