523557011 has 2 divisors, whose sum is σ = 523557012. Its totient is φ = 523557010.

The previous prime is 523556987. The next prime is 523557019. The reversal of 523557011 is 110755325.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 523557011 - 2¹⁴ = 523540627 is a prime.

It is a super-2 number, since 2×523557011² = 548223887534508242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (523557019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261778505 + 261778506.

It is an arithmetic number, because the mean of its divisors is an integer number (261778506).

Almost surely, 2^523557011 is an apocalyptic number.

523557011 is a deficient number, since it is larger than the sum of its proper divisors (1).

523557011 is an equidigital number, since it uses as much as digits as its factorization.

523557011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 523557011 is about 22881.3682064688. The cubic root of 523557011 is about 805.9745464811.

The spelling of 523557011 in words is "five hundred twenty-three million, five hundred fifty-seven thousand, eleven".