225273775 has 24 divisors (see below), whose sum is σ = 287116544. Its totient is φ = 175240800.

The previous prime is 225273767. The next prime is 225273779. The reversal of 225273775 is 577372522.

It is not a de Polignac number, because 225273775 - 2³ = 225273767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225273779) 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 23 ways as a sum of consecutive naturals, for example, 394240 + ... + 394810.

Almost surely, 2^225273775 is an apocalyptic number.

225273775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

225273775 is a deficient number, since it is larger than the sum of its proper divisors (61842769).

225273775 is a wasteful number, since it uses less digits than its factorization.

225273775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991 (or 986 counting only the distinct ones).

The product of its digits is 205800, while the sum is 40.

The square root of 225273775 is about 15009.1230589932. The cubic root of 225273775 is about 608.4667891770.

The spelling of 225273775 in words is "two hundred twenty-five million, two hundred seventy-three thousand, seven hundred seventy-five".