51266055713 has 4 divisors (see below), whose sum is σ = 51266663700. Its totient is φ = 51265447728.

The previous prime is 51266055707. The next prime is 51266055719. The reversal of 51266055713 is 31755066215.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (51266055707) and next prime (51266055719).

It can be written as a sum of positive squares in 2 ways, for example, as 46161381904 + 5104673809 = 214852^2 + 71447^2 .

It is a cyclic number.

It is not a de Polignac number, because 51266055713 - 2⁴ = 51266055697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51266055719) 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, 152270 + ... + 354567.

It is an arithmetic number, because the mean of its divisors is an integer number (12816665925).

Almost surely, 2^51266055713 is an apocalyptic number.

It is an amenable number.

51266055713 is a deficient number, since it is larger than the sum of its proper divisors (607987).

51266055713 is a wasteful number, since it uses less digits than its factorization.

51266055713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607986.

The product of its (nonzero) digits is 189000, while the sum is 41.

The spelling of 51266055713 in words is "fifty-one billion, two hundred sixty-six million, fifty-five thousand, seven hundred thirteen".