51052005249 has 32 divisors (see below), whose sum is σ = 80419921920. Its totient is φ = 28190419200.

The previous prime is 51052005247. The next prime is 51052005271. The reversal of 51052005249 is 94250025015.

It is not a de Polignac number, because 51052005249 - 2¹ = 51052005247 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51052005247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 393097 + ... + 506585.

It is an arithmetic number, because the mean of its divisors is an integer number (2513122560).

Almost surely, 2^51052005249 is an apocalyptic number.

It is an amenable number.

51052005249 is a deficient number, since it is larger than the sum of its proper divisors (29367916671).

51052005249 is a wasteful number, since it uses less digits than its factorization.

51052005249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114221.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 51052005249 in words is "fifty-one billion, fifty-two million, five thousand, two hundred forty-nine".