523113601 has 2 divisors, whose sum is σ = 523113602. Its totient is φ = 523113600.

The previous prime is 523113599. The next prime is 523113667. The reversal of 523113601 is 106311325.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278222400 + 244891201 = 16680^2 + 15649^2 .

It is a cyclic number.

It is not a de Polignac number, because 523113601 - 2¹ = 523113599 is a prime.

Together with 523113599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (523153601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261556800 + 261556801.

It is an arithmetic number, because the mean of its divisors is an integer number (261556801).

Almost surely, 2^523113601 is an apocalyptic number.

It is an amenable number.

523113601 is a deficient number, since it is larger than the sum of its proper divisors (1).

523113601 is an equidigital number, since it uses as much as digits as its factorization.

523113601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 523113601 is about 22871.6768296511. The cubic root of 523113601 is about 805.7469506935.

Adding to 523113601 its reverse (106311325), we get a palindrome (629424926).

The spelling of 523113601 in words is "five hundred twenty-three million, one hundred thirteen thousand, six hundred one".