51444961 has 2 divisors, whose sum is σ = 51444962. Its totient is φ = 51444960.

The previous prime is 51444949. The next prime is 51444973. The reversal of 51444961 is 16944415.

It is a happy number.

51444961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (51444949) and next prime (51444973).

It can be written as a sum of positive squares in only one way, i.e., 27248400 + 24196561 = 5220^2 + 4919^2 .

It is a cyclic number.

It is not a de Polignac number, because 51444961 - 2⁵ = 51444929 is a prime.

It is not a weakly prime, because it can be changed into another prime (54444961) 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, 25722480 + 25722481.

It is an arithmetic number, because the mean of its divisors is an integer number (25722481).

Almost surely, 2^51444961 is an apocalyptic number.

It is an amenable number.

51444961 is a deficient number, since it is larger than the sum of its proper divisors (1).

51444961 is an equidigital number, since it uses as much as digits as its factorization.

51444961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 34.

The square root of 51444961 is about 7172.5142732517. The cubic root of 51444961 is about 371.9183565578.

The spelling of 51444961 in words is "fifty-one million, four hundred forty-four thousand, nine hundred sixty-one".