51502159 has 2 divisors, whose sum is σ = 51502160. Its totient is φ = 51502158.

The previous prime is 51502133. The next prime is 51502169. The reversal of 51502159 is 95120515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51502159 - 2⁵ = 51502127 is a prime.

It is a super-2 number, since 2×51502159² = 5304944763322562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51502169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25751079 + 25751080.

It is an arithmetic number, because the mean of its divisors is an integer number (25751080).

Almost surely, 2^51502159 is an apocalyptic number.

51502159 is a deficient number, since it is larger than the sum of its proper divisors (1).

51502159 is an equidigital number, since it uses as much as digits as its factorization.

51502159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2250, while the sum is 28.

The square root of 51502159 is about 7176.5004702849. The cubic root of 51502159 is about 372.0561420450.

It can be divided in two parts, 51502 and 159, that multiplied together give a palindrome (8188818).

The spelling of 51502159 in words is "fifty-one million, five hundred two thousand, one hundred fifty-nine".