51437171 has 2 divisors, whose sum is σ = 51437172. Its totient is φ = 51437170.

The previous prime is 51437167. The next prime is 51437207. The reversal of 51437171 is 17173415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51437171 - 2² = 51437167 is a prime.

It is not a weakly prime, because it can be changed into another prime (51437671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25718585 + 25718586.

It is an arithmetic number, because the mean of its divisors is an integer number (25718586).

Almost surely, 2^51437171 is an apocalyptic number.

51437171 is a deficient number, since it is larger than the sum of its proper divisors (1).

51437171 is an equidigital number, since it uses as much as digits as its factorization.

51437171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2940, while the sum is 29.

The square root of 51437171 is about 7171.9712074157. The cubic root of 51437171 is about 371.8995831594.

The spelling of 51437171 in words is "fifty-one million, four hundred thirty-seven thousand, one hundred seventy-one".