523233401 has 2 divisors, whose sum is σ = 523233402. Its totient is φ = 523233400.

The previous prime is 523233383. The next prime is 523233433. The reversal of 523233401 is 104332325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 287641600 + 235591801 = 16960^2 + 15349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523233401 is a prime.

It is not a weakly prime, because it can be changed into another prime (523233481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261616700 + 261616701.

It is an arithmetic number, because the mean of its divisors is an integer number (261616701).

Almost surely, 2^523233401 is an apocalyptic number.

It is an amenable number.

523233401 is a deficient number, since it is larger than the sum of its proper divisors (1).

523233401 is an equidigital number, since it uses as much as digits as its factorization.

523233401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 523233401 is about 22874.2956394290. The cubic root of 523233401 is about 805.8084549357.

Adding to 523233401 its reverse (104332325), we get a palindrome (627565726).

The spelling of 523233401 in words is "five hundred twenty-three million, two hundred thirty-three thousand, four hundred one".