51344659 has 2 divisors, whose sum is σ = 51344660. Its totient is φ = 51344658.

The previous prime is 51344653. The next prime is 51344693. The reversal of 51344659 is 95644315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51344659 - 2⁵ = 51344627 is a prime.

It is not a weakly prime, because it can be changed into another prime (51344653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25672329 + 25672330.

It is an arithmetic number, because the mean of its divisors is an integer number (25672330).

Almost surely, 2^51344659 is an apocalyptic number.

51344659 is a deficient number, since it is larger than the sum of its proper divisors (1).

51344659 is an equidigital number, since it uses as much as digits as its factorization.

51344659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 37.

The square root of 51344659 is about 7165.5187530283. The cubic root of 51344659 is about 371.6764901405.

It can be divided in two parts, 51344 and 659, that added together give a triangular number (52003 = T₃₂₂).

The spelling of 51344659 in words is "fifty-one million, three hundred forty-four thousand, six hundred fifty-nine".