51272127 has 24 divisors (see below), whose sum is σ = 78249600. Its totient is φ = 32261328.

The previous prime is 51272107. The next prime is 51272149. The reversal of 51272127 is 72127215.

It is not a de Polignac number, because 51272127 - 2⁶ = 51272063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51272127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51272107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74728 + ... + 75410.

It is an arithmetic number, because the mean of its divisors is an integer number (3260400).

Almost surely, 2^51272127 is an apocalyptic number.

51272127 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

51272127 is a deficient number, since it is larger than the sum of its proper divisors (26977473).

51272127 is a wasteful number, since it uses less digits than its factorization.

51272127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147 (or 1144 counting only the distinct ones).

The product of its digits is 1960, while the sum is 27.

The square root of 51272127 is about 7160.4557815826. The cubic root of 51272127 is about 371.5013914775.

The spelling of 51272127 in words is "fifty-one million, two hundred seventy-two thousand, one hundred twenty-seven".