51498259 has 2 divisors, whose sum is σ = 51498260. Its totient is φ = 51498258.

The previous prime is 51498221. The next prime is 51498269. The reversal of 51498259 is 95289415.

51498259 is nontrivially palindromic in base 4.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51498259 - 2⁷ = 51498131 is a prime.

It is not a weakly prime, because it can be changed into another prime (51498269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25749129 + 25749130.

It is an arithmetic number, because the mean of its divisors is an integer number (25749130).

Almost surely, 2^51498259 is an apocalyptic number.

51498259 is a deficient number, since it is larger than the sum of its proper divisors (1).

51498259 is an equidigital number, since it uses as much as digits as its factorization.

51498259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 43.

The square root of 51498259 is about 7176.2287449607. The cubic root of 51498259 is about 372.0467504932.

The spelling of 51498259 in words is "fifty-one million, four hundred ninety-eight thousand, two hundred fifty-nine".