5155571899 has 2 divisors, whose sum is σ = 5155571900. Its totient is φ = 5155571898.

The previous prime is 5155571857. The next prime is 5155571917. The reversal of 5155571899 is 9981755515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5155571899 - 2¹¹ = 5155569851 is a prime.

It is not a weakly prime, because it can be changed into another prime (5155571849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2577785949 + 2577785950.

It is an arithmetic number, because the mean of its divisors is an integer number (2577785950).

Almost surely, 2^5155571899 is an apocalyptic number.

5155571899 is a deficient number, since it is larger than the sum of its proper divisors (1).

5155571899 is an equidigital number, since it uses as much as digits as its factorization.

5155571899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2835000, while the sum is 55.

The square root of 5155571899 is about 71802.3112371740. The cubic root of 5155571899 is about 1727.5300714166.

The spelling of 5155571899 in words is "five billion, one hundred fifty-five million, five hundred seventy-one thousand, eight hundred ninety-nine".