2516394841 has 2 divisors, whose sum is σ = 2516394842. Its totient is φ = 2516394840.

The previous prime is 2516394767. The next prime is 2516394847. The reversal of 2516394841 is 1484936152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1953993616 + 562401225 = 44204^2 + 23715^2 .

It is a cyclic number.

It is not a de Polignac number, because 2516394841 - 2²³ = 2508006233 is a prime.

It is a super-2 number, since 2×2516394841² = 12664485991622830562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2516394847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1258197420 + 1258197421.

It is an arithmetic number, because the mean of its divisors is an integer number (1258197421).

Almost surely, 2^2516394841 is an apocalyptic number.

It is an amenable number.

2516394841 is a deficient number, since it is larger than the sum of its proper divisors (1).

2516394841 is an equidigital number, since it uses as much as digits as its factorization.

2516394841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 43.

The square root of 2516394841 is about 50163.6804969492. The cubic root of 2516394841 is about 1360.1691760783.

The spelling of 2516394841 in words is "two billion, five hundred sixteen million, three hundred ninety-four thousand, eight hundred forty-one".