51201877 has 2 divisors, whose sum is σ = 51201878. Its totient is φ = 51201876.

The previous prime is 51201859. The next prime is 51201889. The reversal of 51201877 is 77810215.

It is a happy number.

51201877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48246916 + 2954961 = 6946^2 + 1719^2 .

It is a cyclic number.

It is not a de Polignac number, because 51201877 - 2¹⁹ = 50677589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51201277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25600938 + 25600939.

It is an arithmetic number, because the mean of its divisors is an integer number (25600939).

Almost surely, 2^51201877 is an apocalyptic number.

It is an amenable number.

51201877 is a deficient number, since it is larger than the sum of its proper divisors (1).

51201877 is an equidigital number, since it uses as much as digits as its factorization.

51201877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 51201877 is about 7155.5486861596. The cubic root of 51201877 is about 371.3316442702.

The spelling of 51201877 in words is "fifty-one million, two hundred one thousand, eight hundred seventy-seven".