51280459 has 2 divisors, whose sum is σ = 51280460. Its totient is φ = 51280458.

The previous prime is 51280451. The next prime is 51280469. The reversal of 51280459 is 95408215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51280459 - 2³ = 51280451 is a prime.

It is not a weakly prime, because it can be changed into another prime (51280451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25640229 + 25640230.

It is an arithmetic number, because the mean of its divisors is an integer number (25640230).

Almost surely, 2^51280459 is an apocalyptic number.

51280459 is a deficient number, since it is larger than the sum of its proper divisors (1).

51280459 is an equidigital number, since it uses as much as digits as its factorization.

51280459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 51280459 is about 7161.0375644874. The cubic root of 51280459 is about 371.5215140543.

The spelling of 51280459 in words is "fifty-one million, two hundred eighty thousand, four hundred fifty-nine".