51010005265 has 8 divisors (see below), whose sum is σ = 64812712680. Its totient is φ = 38407533312.

The previous prime is 51010005217. The next prime is 51010005287. The reversal of 51010005265 is 56250001015.

51010005265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 374654736 + 50635350529 = 19356^2 + 225023^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51010005265 - 2²¹ = 51007908113 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300058770 + ... + 300058939.

It is an arithmetic number, because the mean of its divisors is an integer number (8101589085).

Almost surely, 2^51010005265 is an apocalyptic number.

It is an amenable number.

51010005265 is a deficient number, since it is larger than the sum of its proper divisors (13802707415).

51010005265 is a wasteful number, since it uses less digits than its factorization.

51010005265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600117731.

The product of its (nonzero) digits is 1500, while the sum is 25.

The spelling of 51010005265 in words is "fifty-one billion, ten million, five thousand, two hundred sixty-five".