51127589 has 2 divisors, whose sum is σ = 51127590. Its totient is φ = 51127588.

The previous prime is 51127579. The next prime is 51127631. The reversal of 51127589 is 98572115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29430625 + 21696964 = 5425^2 + 4658^2 .

It is a cyclic number.

It is not a de Polignac number, because 51127589 - 2¹² = 51123493 is a prime.

It is a super-2 number, since 2×51127589² = 5228060713905842, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51127529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25563794 + 25563795.

It is an arithmetic number, because the mean of its divisors is an integer number (25563795).

Almost surely, 2^51127589 is an apocalyptic number.

It is an amenable number.

51127589 is a deficient number, since it is larger than the sum of its proper divisors (1).

51127589 is an equidigital number, since it uses as much as digits as its factorization.

51127589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 38.

The square root of 51127589 is about 7150.3558652699. The cubic root of 51127589 is about 371.1519709282.

The spelling of 51127589 in words is "fifty-one million, one hundred twenty-seven thousand, five hundred eighty-nine".