51389027 has 2 divisors, whose sum is σ = 51389028. Its totient is φ = 51389026.

The previous prime is 51389021. The next prime is 51389033. The reversal of 51389027 is 72098315.

It is a balanced prime because it is at equal distance from previous prime (51389021) and next prime (51389033).

It is a cyclic number.

It is not a de Polignac number, because 51389027 - 2⁶ = 51388963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51389021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25694513 + 25694514.

It is an arithmetic number, because the mean of its divisors is an integer number (25694514).

Almost surely, 2^51389027 is an apocalyptic number.

51389027 is a deficient number, since it is larger than the sum of its proper divisors (1).

51389027 is an equidigital number, since it uses as much as digits as its factorization.

51389027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 51389027 is about 7168.6140222500. The cubic root of 51389027 is about 371.7835171431.

The spelling of 51389027 in words is "fifty-one million, three hundred eighty-nine thousand, twenty-seven".