51006061 has 2 divisors, whose sum is σ = 51006062. Its totient is φ = 51006060.

The previous prime is 51006047. The next prime is 51006079. The reversal of 51006061 is 16060015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42653961 + 8352100 = 6531^2 + 2890^2 .

It is a cyclic number.

It is not a de Polignac number, because 51006061 - 2¹¹ = 51004013 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51006661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25503030 + 25503031.

It is an arithmetic number, because the mean of its divisors is an integer number (25503031).

Almost surely, 2^51006061 is an apocalyptic number.

It is an amenable number.

51006061 is a deficient number, since it is larger than the sum of its proper divisors (1).

51006061 is an equidigital number, since it uses as much as digits as its factorization.

51006061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 51006061 is about 7141.8527708151. The cubic root of 51006061 is about 370.8576670590.

Adding to 51006061 its reverse (16060015), we get a palindrome (67066076).

It can be divided in two parts, 5 and 1006061, that multiplied together give a palindrome (5030305).

The spelling of 51006061 in words is "fifty-one million, six thousand, sixty-one".