225243523 has 16 divisors (see below), whose sum is σ = 241920000. Its totient is φ = 208973952.

The previous prime is 225243521. The next prime is 225243527. The reversal of 225243523 is 325342522.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 225243523 - 2¹ = 225243521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225243491 and 225243500.

It is not an unprimeable number, because it can be changed into a prime (225243521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469998 + ... + 470476.

It is an arithmetic number, because the mean of its divisors is an integer number (15120000).

Almost surely, 2^225243523 is an apocalyptic number.

225243523 is a deficient number, since it is larger than the sum of its proper divisors (16676477).

225243523 is a wasteful number, since it uses less digits than its factorization.

225243523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834.

The product of its digits is 14400, while the sum is 28.

The square root of 225243523 is about 15008.1152380970. The cubic root of 225243523 is about 608.4395509698.

The spelling of 225243523 in words is "two hundred twenty-five million, two hundred forty-three thousand, five hundred twenty-three".