523373957 has 2 divisors, whose sum is σ = 523373958. Its totient is φ = 523373956.

The previous prime is 523373869. The next prime is 523373971. The reversal of 523373957 is 759373325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320624836 + 202749121 = 17906^2 + 14239^2 .

It is a cyclic number.

It is not a de Polignac number, because 523373957 - 2¹⁶ = 523308421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523373057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261686978 + 261686979.

It is an arithmetic number, because the mean of its divisors is an integer number (261686979).

Almost surely, 2^523373957 is an apocalyptic number.

It is an amenable number.

523373957 is a deficient number, since it is larger than the sum of its proper divisors (1).

523373957 is an equidigital number, since it uses as much as digits as its factorization.

523373957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 595350, while the sum is 44.

The square root of 523373957 is about 22877.3677900234. The cubic root of 523373957 is about 805.8806031540.

The spelling of 523373957 in words is "five hundred twenty-three million, three hundred seventy-three thousand, nine hundred fifty-seven".