5099999381 has 2 divisors, whose sum is σ = 5099999382. Its totient is φ = 5099999380.

The previous prime is 5099999351. The next prime is 5099999393. The reversal of 5099999381 is 1839999905.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3411611281 + 1688388100 = 58409^2 + 41090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5099999381 is a prime.

It is a super-2 number, since 2×5099999381² = 52019987372400766322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5099999341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2549999690 + 2549999691.

It is an arithmetic number, because the mean of its divisors is an integer number (2549999691).

Almost surely, 2^5099999381 is an apocalyptic number.

It is an amenable number.

5099999381 is a deficient number, since it is larger than the sum of its proper divisors (1).

5099999381 is an equidigital number, since it uses as much as digits as its factorization.

5099999381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7085880, while the sum is 62.

The square root of 5099999381 is about 71414.2799515615. The cubic root of 5099999381 is about 1721.3005510868.

The spelling of 5099999381 in words is "five billion, ninety-nine million, nine hundred ninety-nine thousand, three hundred eighty-one".