51225014105 has 4 divisors (see below), whose sum is σ = 61470016932. Its totient is φ = 40980011280.

The previous prime is 51225014063. The next prime is 51225014107. The reversal of 51225014105 is 50141052215.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28785872896 + 22439141209 = 169664^2 + 149797^2 .

It is not a de Polignac number, because 51225014105 - 2¹² = 51225010009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51225014107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5122501406 + ... + 5122501415.

It is an arithmetic number, because the mean of its divisors is an integer number (15367504233).

Almost surely, 2^51225014105 is an apocalyptic number.

It is an amenable number.

51225014105 is a deficient number, since it is larger than the sum of its proper divisors (10245002827).

51225014105 is a wasteful number, since it uses less digits than its factorization.

51225014105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10245002826.

The product of its (nonzero) digits is 2000, while the sum is 26.

The spelling of 51225014105 in words is "fifty-one billion, two hundred twenty-five million, fourteen thousand, one hundred five".