523251331 has 2 divisors, whose sum is σ = 523251332. Its totient is φ = 523251330.

The previous prime is 523251259. The next prime is 523251343. The reversal of 523251331 is 133152325.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 523251331 - 2¹³ = 523243139 is a prime.

It is a super-2 number, since 2×523251331² = 547583910786543122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 523251296 and 523251305.

It is not a weakly prime, because it can be changed into another prime (523261331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261625665 + 261625666.

It is an arithmetic number, because the mean of its divisors is an integer number (261625666).

Almost surely, 2^523251331 is an apocalyptic number.

523251331 is a deficient number, since it is larger than the sum of its proper divisors (1).

523251331 is an equidigital number, since it uses as much as digits as its factorization.

523251331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 25.

The square root of 523251331 is about 22874.6875607078. The cubic root of 523251331 is about 805.8176592287.

The spelling of 523251331 in words is "five hundred twenty-three million, two hundred fifty-one thousand, three hundred thirty-one".