51108073 has 2 divisors, whose sum is σ = 51108074. Its totient is φ = 51108072.

The previous prime is 51108067. The next prime is 51108089. The reversal of 51108073 is 37080115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50083929 + 1024144 = 7077^2 + 1012^2 .

It is a cyclic number.

It is not a de Polignac number, because 51108073 - 2⁵ = 51108041 is a prime.

It is a super-2 number, since 2×51108073² = 5224070251546658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51108173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25554036 + 25554037.

It is an arithmetic number, because the mean of its divisors is an integer number (25554037).

Almost surely, 2^51108073 is an apocalyptic number.

It is an amenable number.

51108073 is a deficient number, since it is larger than the sum of its proper divisors (1).

51108073 is an equidigital number, since it uses as much as digits as its factorization.

51108073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 51108073 is about 7148.9910476934. The cubic root of 51108073 is about 371.1047405656.

Adding to 51108073 its reverse (37080115), we get a palindrome (88188188).

The spelling of 51108073 in words is "fifty-one million, one hundred eight thousand, seventy-three".