51110050025 has 12 divisors (see below), whose sum is σ = 64088559900. Its totient is φ = 40428622080.

The previous prime is 51110049971. The next prime is 51110050049. The reversal of 51110050025 is 52005001115.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 10705833961 + 40404216064 = 103469^2 + 201008^2 .

It is not a de Polignac number, because 51110050025 - 2⁶ = 51110049961 is a prime.

It is a super-2 number, since 2×51110050025² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51110049979 and 51110050006.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11483180 + ... + 11487629.

It is an arithmetic number, because the mean of its divisors is an integer number (5340713325).

Almost surely, 2^51110050025 is an apocalyptic number.

It is an amenable number.

51110050025 is a deficient number, since it is larger than the sum of its proper divisors (12978509875).

51110050025 is a wasteful number, since it uses less digits than its factorization.

51110050025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22970908 (or 22970903 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 20.

The spelling of 51110050025 in words is "fifty-one billion, one hundred ten million, fifty thousand, twenty-five".