506115971 has 2 divisors, whose sum is σ = 506115972. Its totient is φ = 506115970.

The previous prime is 506115937. The next prime is 506116019. The reversal of 506115971 is 179511605.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506115971 is a prime.

It is a super-2 number, since 2×506115971² = 512306752202545682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (506115271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253057985 + 253057986.

It is an arithmetic number, because the mean of its divisors is an integer number (253057986).

Almost surely, 2^506115971 is an apocalyptic number.

506115971 is a deficient number, since it is larger than the sum of its proper divisors (1).

506115971 is an equidigital number, since it uses as much as digits as its factorization.

506115971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9450, while the sum is 35.

The square root of 506115971 is about 22497.0213806184. The cubic root of 506115971 is about 796.9235863258.

The spelling of 506115971 in words is "five hundred six million, one hundred fifteen thousand, nine hundred seventy-one".