523351403 has 2 divisors, whose sum is σ = 523351404. Its totient is φ = 523351402.

The previous prime is 523351357. The next prime is 523351427. The reversal of 523351403 is 304153325.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 523351403 - 2¹⁰ = 523350379 is a prime.

It is not a weakly prime, because it can be changed into another prime (523351483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261675701 + 261675702.

It is an arithmetic number, because the mean of its divisors is an integer number (261675702).

Almost surely, 2^523351403 is an apocalyptic number.

523351403 is a deficient number, since it is larger than the sum of its proper divisors (1).

523351403 is an equidigital number, since it uses as much as digits as its factorization.

523351403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 523351403 is about 22876.8748521296. The cubic root of 523351403 is about 805.8690269238.

The spelling of 523351403 in words is "five hundred twenty-three million, three hundred fifty-one thousand, four hundred three".