51272007 has 4 divisors (see below), whose sum is σ = 68362680. Its totient is φ = 34181336.

The previous prime is 51271967. The next prime is 51272009. The reversal of 51272007 is 70027215.

51272007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 51272007 - 2⁷ = 51271879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51272009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8545332 + ... + 8545337.

It is an arithmetic number, because the mean of its divisors is an integer number (17090670).

Almost surely, 2^51272007 is an apocalyptic number.

51272007 is a deficient number, since it is larger than the sum of its proper divisors (17090673).

51272007 is a wasteful number, since it uses less digits than its factorization.

51272007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17090672.

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 51272007 is about 7160.4474022229. The cubic root of 51272007 is about 371.5011016501.

The spelling of 51272007 in words is "fifty-one million, two hundred seventy-two thousand, seven".