523505273 has 2 divisors, whose sum is σ = 523505274. Its totient is φ = 523505272.

The previous prime is 523505251. The next prime is 523505291. The reversal of 523505273 is 372505325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 295736809 + 227768464 = 17197^2 + 15092^2 .

It is a cyclic number.

It is not a de Polignac number, because 523505273 - 2¹⁰ = 523504249 is a prime.

It is not a weakly prime, because it can be changed into another prime (523525273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261752636 + 261752637.

It is an arithmetic number, because the mean of its divisors is an integer number (261752637).

Almost surely, 2^523505273 is an apocalyptic number.

It is an amenable number.

523505273 is a deficient number, since it is larger than the sum of its proper divisors (1).

523505273 is an equidigital number, since it uses as much as digits as its factorization.

523505273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 32.

The square root of 523505273 is about 22880.2376080320. The cubic root of 523505273 is about 805.9479967556.

The spelling of 523505273 in words is "five hundred twenty-three million, five hundred five thousand, two hundred seventy-three".