51013159 has 2 divisors, whose sum is σ = 51013160. Its totient is φ = 51013158.

The previous prime is 51013129. The next prime is 51013163. The reversal of 51013159 is 95131015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51013159 - 2²³ = 42624551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51013129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25506579 + 25506580.

It is an arithmetic number, because the mean of its divisors is an integer number (25506580).

Almost surely, 2^51013159 is an apocalyptic number.

51013159 is a deficient number, since it is larger than the sum of its proper divisors (1).

51013159 is an equidigital number, since it uses as much as digits as its factorization.

51013159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 675, while the sum is 25.

The square root of 51013159 is about 7142.3496834025. The cubic root of 51013159 is about 370.8748691037.

The spelling of 51013159 in words is "fifty-one million, thirteen thousand, one hundred fifty-nine".