523536399 has 8 divisors (see below), whose sum is σ = 775609520. Its totient is φ = 349024248.

The previous prime is 523536389. The next prime is 523536407. The reversal of 523536399 is 993635325.

523536399 is a `hidden beast` number, since 5 + 2 + 3 + 5 + 3 + 639 + 9 = 666.

It is not a de Polignac number, because 523536399 - 2⁷ = 523536271 is a prime.

It is a super-2 number, since 2×523536399² = 548180722155774402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523536319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9695092 + ... + 9695145.

It is an arithmetic number, because the mean of its divisors is an integer number (96951190).

Almost surely, 2^523536399 is an apocalyptic number.

523536399 is a deficient number, since it is larger than the sum of its proper divisors (252073121).

523536399 is a wasteful number, since it uses less digits than its factorization.

523536399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19390246 (or 19390240 counting only the distinct ones).

The product of its digits is 656100, while the sum is 45.

The square root of 523536399 is about 22880.9177919069. The cubic root of 523536399 is about 805.9639694952.

The spelling of 523536399 in words is "five hundred twenty-three million, five hundred thirty-six thousand, three hundred ninety-nine".