51272552265 has 16 divisors (see below), whose sum is σ = 89493909696. Its totient is φ = 24859419200.

The previous prime is 51272552263. The next prime is 51272552339. The reversal of 51272552265 is 56225527215.

It is not a de Polignac number, because 51272552265 - 2¹ = 51272552263 is a prime.

It is a super-3 number, since 3×51272552265³ (a number of 33 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51272552263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155371206 + ... + 155371535.

It is an arithmetic number, because the mean of its divisors is an integer number (5593369356).

Almost surely, 2^51272552265 is an apocalyptic number.

51272552265 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51272552265 is a deficient number, since it is larger than the sum of its proper divisors (38221357431).

51272552265 is a wasteful number, since it uses less digits than its factorization.

51272552265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310742760.

The product of its digits is 420000, while the sum is 42.

The spelling of 51272552265 in words is "fifty-one billion, two hundred seventy-two million, five hundred fifty-two thousand, two hundred sixty-five".