51050345205 has 32 divisors (see below), whose sum is σ = 83051434368. Its totient is φ = 26770233600.

The previous prime is 51050345201. The next prime is 51050345231. The reversal of 51050345205 is 50254305015.

It is a happy number.

It is not a de Polignac number, because 51050345205 - 2² = 51050345201 is a prime.

It is a super-2 number, since 2×51050345205² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51050345201) 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, 2769670 + ... + 2788040.

It is an arithmetic number, because the mean of its divisors is an integer number (2595357324).

Almost surely, 2^51050345205 is an apocalyptic number.

It is an amenable number.

51050345205 is a deficient number, since it is larger than the sum of its proper divisors (32001089163).

51050345205 is a wasteful number, since it uses less digits than its factorization.

51050345205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21477.

The product of its (nonzero) digits is 15000, while the sum is 30.

The spelling of 51050345205 in words is "fifty-one billion, fifty million, three hundred forty-five thousand, two hundred five".