225252523 has 16 divisors (see below), whose sum is σ = 233323776. Its totient is φ = 217382400.

The previous prime is 225252457. The next prime is 225252551. The reversal of 225252523 is 325252522.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225252523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225252491 and 225252500.

It is not an unprimeable number, because it can be changed into a prime (225252553) 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, 1009990 + ... + 1010212.

It is an arithmetic number, because the mean of its divisors is an integer number (14582736).

Almost surely, 2^225252523 is an apocalyptic number.

225252523 is a deficient number, since it is larger than the sum of its proper divisors (8071253).

225252523 is a wasteful number, since it uses less digits than its factorization.

225252523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534.

The product of its digits is 12000, while the sum is 28.

The square root of 225252523 is about 15008.4150728849. The cubic root of 225252523 is about 608.4476546183.

Subtracting 225252523 from its reverse (325252522), we obtain a palindrome (99999999).

The spelling of 225252523 in words is "two hundred twenty-five million, two hundred fifty-two thousand, five hundred twenty-three".