51514861 has 2 divisors, whose sum is σ = 51514862. Its totient is φ = 51514860.

The previous prime is 51514849. The next prime is 51514921. The reversal of 51514861 is 16841515.

51514861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47692836 + 3822025 = 6906^2 + 1955^2 .

It is a cyclic number.

It is not a de Polignac number, because 51514861 - 2¹³ = 51506669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51514061) 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, 25757430 + 25757431.

It is an arithmetic number, because the mean of its divisors is an integer number (25757431).

Almost surely, 2^51514861 is an apocalyptic number.

It is an amenable number.

51514861 is a deficient number, since it is larger than the sum of its proper divisors (1).

51514861 is an equidigital number, since it uses as much as digits as its factorization.

51514861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800, while the sum is 31.

The square root of 51514861 is about 7177.3853874513. The cubic root of 51514861 is about 372.0867263205.

It can be divided in two parts, 515 and 14861, that added together give a square (15376 = 124²).

The spelling of 51514861 in words is "fifty-one million, five hundred fourteen thousand, eight hundred sixty-one".