51436559 has 2 divisors, whose sum is σ = 51436560. Its totient is φ = 51436558.

The previous prime is 51436537. The next prime is 51436597. The reversal of 51436559 is 95563415.

It is an a-pointer prime, because the next prime (51436597) can be obtained adding 51436559 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51436559 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51436519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25718279 + 25718280.

It is an arithmetic number, because the mean of its divisors is an integer number (25718280).

Almost surely, 2^51436559 is an apocalyptic number.

51436559 is a deficient number, since it is larger than the sum of its proper divisors (1).

51436559 is an equidigital number, since it uses as much as digits as its factorization.

51436559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81000, while the sum is 38.

The square root of 51436559 is about 7171.9285411945. The cubic root of 51436559 is about 371.8981081985.

It can be divided in two parts, 514 and 36559, that added together give a palindrome (37073).

The spelling of 51436559 in words is "fifty-one million, four hundred thirty-six thousand, five hundred fifty-nine".