523496381 has 2 divisors, whose sum is σ = 523496382. Its totient is φ = 523496380.

The previous prime is 523496357. The next prime is 523496431. The reversal of 523496381 is 183694325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 459416356 + 64080025 = 21434^2 + 8005^2 .

It is a cyclic number.

It is not a de Polignac number, because 523496381 - 2²⁶ = 456387517 is a prime.

It is a super-2 number, since 2×523496381² = 548096921840194322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523496881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261748190 + 261748191.

It is an arithmetic number, because the mean of its divisors is an integer number (261748191).

Almost surely, 2^523496381 is an apocalyptic number.

It is an amenable number.

523496381 is a deficient number, since it is larger than the sum of its proper divisors (1).

523496381 is an equidigital number, since it uses as much as digits as its factorization.

523496381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 41.

The square root of 523496381 is about 22880.0432910430. The cubic root of 523496381 is about 805.9434335860.

The spelling of 523496381 in words is "five hundred twenty-three million, four hundred ninety-six thousand, three hundred eighty-one".