523223245 has 4 divisors (see below), whose sum is σ = 627867900. Its totient is φ = 418578592.

The previous prime is 523223231. The next prime is 523223293. The reversal of 523223245 is 542322325.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 399880009 + 123343236 = 19997^2 + 11106^2 .

It is a cyclic number.

It is not a de Polignac number, because 523223245 - 2⁵ = 523223213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52322320 + ... + 52322329.

It is an arithmetic number, because the mean of its divisors is an integer number (156966975).

Almost surely, 2^523223245 is an apocalyptic number.

It is an amenable number.

523223245 is a deficient number, since it is larger than the sum of its proper divisors (104644655).

523223245 is a wasteful number, since it uses less digits than its factorization.

523223245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104644654.

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

The square root of 523223245 is about 22874.0736424451. The cubic root of 523223245 is about 805.8032413009.

The spelling of 523223245 in words is "five hundred twenty-three million, two hundred twenty-three thousand, two hundred forty-five".