51100000499 has 4 divisors (see below), whose sum is σ = 51605941200. Its totient is φ = 50594059800.

The previous prime is 51100000481. The next prime is 51100000529. The reversal of 51100000499 is 99400000115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51100000499 - 2¹² = 51099996403 is a prime.

It is a super-2 number, since 2×51100000499² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51100000459) 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 3 ways as a sum of consecutive naturals, for example, 252970199 + ... + 252970400.

It is an arithmetic number, because the mean of its divisors is an integer number (12901485300).

Almost surely, 2^51100000499 is an apocalyptic number.

51100000499 is a deficient number, since it is larger than the sum of its proper divisors (505940701).

51100000499 is a wasteful number, since it uses less digits than its factorization.

51100000499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505940700.

The product of its (nonzero) digits is 1620, while the sum is 29.

The spelling of 51100000499 in words is "fifty-one billion, one hundred million, four hundred ninety-nine", and thus it is an aban number.