523775971 has 2 divisors, whose sum is σ = 523775972. Its totient is φ = 523775970.

The previous prime is 523775957. The next prime is 523776049. The reversal of 523775971 is 179577325.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 523775971 - 2⁵ = 523775939 is a prime.

It is not a weakly prime, because it can be changed into another prime (523775921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261887985 + 261887986.

It is an arithmetic number, because the mean of its divisors is an integer number (261887986).

Almost surely, 2^523775971 is an apocalyptic number.

523775971 is a deficient number, since it is larger than the sum of its proper divisors (1).

523775971 is an equidigital number, since it uses as much as digits as its factorization.

523775971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 463050, while the sum is 46.

The square root of 523775971 is about 22886.1523852307. The cubic root of 523775971 is about 806.0868880135.

The spelling of 523775971 in words is "five hundred twenty-three million, seven hundred seventy-five thousand, nine hundred seventy-one".