523345207 has 16 divisors (see below), whose sum is σ = 657886464. Its totient is φ = 407794200.

The previous prime is 523345183. The next prime is 523345219. The reversal of 523345207 is 702543325.

It is a de Polignac number, because none of the positive numbers 2^k-523345207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523345247) 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, 18769 + ... + 37402.

It is an arithmetic number, because the mean of its divisors is an integer number (41117904).

Almost surely, 2^523345207 is an apocalyptic number.

523345207 is a deficient number, since it is larger than the sum of its proper divisors (134541257).

523345207 is an equidigital number, since it uses as much as digits as its factorization.

523345207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56211 (or 56189 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 31.

The square root of 523345207 is about 22876.7394311340. The cubic root of 523345207 is about 805.8658466615.

The spelling of 523345207 in words is "five hundred twenty-three million, three hundred forty-five thousand, two hundred seven".