51456061 has 2 divisors, whose sum is σ = 51456062. Its totient is φ = 51456060.

The previous prime is 51456049. The next prime is 51456077. The reversal of 51456061 is 16065415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29224836 + 22231225 = 5406^2 + 4715^2 .

It is a cyclic number.

It is not a de Polignac number, because 51456061 - 2⁵ = 51456029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51456091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25728030 + 25728031.

It is an arithmetic number, because the mean of its divisors is an integer number (25728031).

Almost surely, 2^51456061 is an apocalyptic number.

It is an amenable number.

51456061 is a deficient number, since it is larger than the sum of its proper divisors (1).

51456061 is an equidigital number, since it uses as much as digits as its factorization.

51456061 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 51456061 is about 7173.2880187540. The cubic root of 51456061 is about 371.9451035692.

The spelling of 51456061 in words is "fifty-one million, four hundred fifty-six thousand, sixty-one".