51500159 has 2 divisors, whose sum is σ = 51500160. Its totient is φ = 51500158.

The previous prime is 51500147. The next prime is 51500167. The reversal of 51500159 is 95100515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51500159 - 2¹² = 51496063 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51500959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25750079 + 25750080.

It is an arithmetic number, because the mean of its divisors is an integer number (25750080).

Almost surely, 2^51500159 is an apocalyptic number.

51500159 is a deficient number, since it is larger than the sum of its proper divisors (1).

51500159 is an equidigital number, since it uses as much as digits as its factorization.

51500159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1125, while the sum is 26.

The square root of 51500159 is about 7176.3611252500. The cubic root of 51500159 is about 372.0513259238.

The spelling of 51500159 in words is "fifty-one million, five hundred thousand, one hundred fifty-nine".