5091193251 has 16 divisors (see below), whose sum is σ = 7544401920. Its totient is φ = 3393276840.

The previous prime is 5091193231. The next prime is 5091193259. The reversal of 5091193251 is 1523911905.

5091193251 is a `hidden beast` number, since 509 + 11 + 93 + 2 + 51 = 666.

It is not a de Polignac number, because 5091193251 - 2⁷ = 5091193123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5091193259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97086 + ... + 140028.

It is an arithmetic number, because the mean of its divisors is an integer number (471525120).

Almost surely, 2^5091193251 is an apocalyptic number.

5091193251 is a deficient number, since it is larger than the sum of its proper divisors (2453208669).

5091193251 is a wasteful number, since it uses less digits than its factorization.

5091193251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47343 (or 47337 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 36.

The square root of 5091193251 is about 71352.5980676247. The cubic root of 5091193251 is about 1720.3092614763.

The spelling of 5091193251 in words is "five billion, ninety-one million, one hundred ninety-three thousand, two hundred fifty-one".