225369571 has 24 divisors (see below), whose sum is σ = 274869504. Its totient is φ = 183894480.

The previous prime is 225369539. The next prime is 225369589. The reversal of 225369571 is 175963522.

It is not a de Polignac number, because 225369571 - 2⁵ = 225369539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225369511) 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, 350176 + ... + 350818.

It is an arithmetic number, because the mean of its divisors is an integer number (11452896).

Almost surely, 2^225369571 is an apocalyptic number.

225369571 is a deficient number, since it is larger than the sum of its proper divisors (49499933).

225369571 is a wasteful number, since it uses less digits than its factorization.

225369571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991 (or 984 counting only the distinct ones).

The product of its digits is 113400, while the sum is 40.

The square root of 225369571 is about 15012.3139788642. The cubic root of 225369571 is about 608.5530256157.

It can be divided in two parts, 2253 and 69571, that added together give a square (71824 = 268²).

The spelling of 225369571 in words is "two hundred twenty-five million, three hundred sixty-nine thousand, five hundred seventy-one".