523365503 has 2 divisors, whose sum is σ = 523365504. Its totient is φ = 523365502.

The previous prime is 523365461. The next prime is 523365509. The reversal of 523365503 is 305563325.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 523365503 - 2¹² = 523361407 is a prime.

It is a super-2 number, since 2×523365503² = 547822899460886018, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 523365503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523365509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261682751 + 261682752.

It is an arithmetic number, because the mean of its divisors is an integer number (261682752).

Almost surely, 2^523365503 is an apocalyptic number.

523365503 is a deficient number, since it is larger than the sum of its proper divisors (1).

523365503 is an equidigital number, since it uses as much as digits as its factorization.

523365503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40500, while the sum is 32.

The square root of 523365503 is about 22877.1830215173. The cubic root of 523365503 is about 805.8762640314.

The spelling of 523365503 in words is "five hundred twenty-three million, three hundred sixty-five thousand, five hundred three".