51371659 has 2 divisors, whose sum is σ = 51371660. Its totient is φ = 51371658.

The previous prime is 51371641. The next prime is 51371669. The reversal of 51371659 is 95617315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51371659 - 2¹³ = 51363467 is a prime.

It is not a weakly prime, because it can be changed into another prime (51371669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25685829 + 25685830.

It is an arithmetic number, because the mean of its divisors is an integer number (25685830).

Almost surely, 2^51371659 is an apocalyptic number.

51371659 is a deficient number, since it is larger than the sum of its proper divisors (1).

51371659 is an equidigital number, since it uses as much as digits as its factorization.

51371659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28350, while the sum is 37.

The square root of 51371659 is about 7167.4025281130. The cubic root of 51371659 is about 371.7416284100.

The spelling of 51371659 in words is "fifty-one million, three hundred seventy-one thousand, six hundred fifty-nine".