51258727 has 16 divisors (see below), whose sum is σ = 57656032. Its totient is φ = 45256320.

The previous prime is 51258703. The next prime is 51258731. The reversal of 51258727 is 72785215.

51258727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51258727 - 2¹¹ = 51256679 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51258797) 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 15 ways as a sum of consecutive naturals, for example, 28468 + ... + 30214.

It is an arithmetic number, because the mean of its divisors is an integer number (3603502).

Almost surely, 2^51258727 is an apocalyptic number.

51258727 is a deficient number, since it is larger than the sum of its proper divisors (6397305).

51258727 is a wasteful number, since it uses less digits than its factorization.

51258727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1858.

The product of its digits is 39200, while the sum is 37.

The square root of 51258727 is about 7159.5200258118. The cubic root of 51258727 is about 371.4690246233.

The spelling of 51258727 in words is "fifty-one million, two hundred fifty-eight thousand, seven hundred twenty-seven".