523242305 has 16 divisors (see below), whose sum is σ = 647274240. Its totient is φ = 405839232.

The previous prime is 523242281. The next prime is 523242353. The reversal of 523242305 is 503242325.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523242305 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14741 + ... + 35549.

It is an arithmetic number, because the mean of its divisors is an integer number (40454640).

Almost surely, 2^523242305 is an apocalyptic number.

It is an amenable number.

523242305 is a deficient number, since it is larger than the sum of its proper divisors (124031935).

523242305 is a wasteful number, since it uses less digits than its factorization.

523242305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20968.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 523242305 is about 22874.4902675448. The cubic root of 523242305 is about 805.8130257944.

The spelling of 523242305 in words is "five hundred twenty-three million, two hundred forty-two thousand, three hundred five".