51712459 has 2 divisors, whose sum is σ = 51712460. Its totient is φ = 51712458.

The previous prime is 51712429. The next prime is 51712469. The reversal of 51712459 is 95421715.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51712459 - 2¹³ = 51704267 is a prime.

It is not a weakly prime, because it can be changed into another prime (51712429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25856229 + 25856230.

It is an arithmetic number, because the mean of its divisors is an integer number (25856230).

Almost surely, 2^51712459 is an apocalyptic number.

51712459 is a deficient number, since it is larger than the sum of its proper divisors (1).

51712459 is an equidigital number, since it uses as much as digits as its factorization.

51712459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 34.

The square root of 51712459 is about 7191.1375317122. The cubic root of 51712459 is about 372.5618629144.

The spelling of 51712459 in words is "fifty-one million, seven hundred twelve thousand, four hundred fifty-nine".