51056461 has 2 divisors, whose sum is σ = 51056462. Its totient is φ = 51056460.

The previous prime is 51056449. The next prime is 51056471. The reversal of 51056461 is 16465015.

51056461 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., 41409225 + 9647236 = 6435^2 + 3106^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51056461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51056471) 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, 25528230 + 25528231.

It is an arithmetic number, because the mean of its divisors is an integer number (25528231).

Almost surely, 2^51056461 is an apocalyptic number.

It is an amenable number.

51056461 is a deficient number, since it is larger than the sum of its proper divisors (1).

51056461 is an equidigital number, since it uses as much as digits as its factorization.

51056461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 51056461 is about 7145.3803957522. The cubic root of 51056461 is about 370.9797772099.

The spelling of 51056461 in words is "fifty-one million, fifty-six thousand, four hundred sixty-one".