51468761 has 2 divisors, whose sum is σ = 51468762. Its totient is φ = 51468760.

The previous prime is 51468757. The next prime is 51468787. The reversal of 51468761 is 16786415.

51468761 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., 49561600 + 1907161 = 7040^2 + 1381^2 .

It is a cyclic number.

It is not a de Polignac number, because 51468761 - 2² = 51468757 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51468731) 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, 25734380 + 25734381.

It is an arithmetic number, because the mean of its divisors is an integer number (25734381).

Almost surely, 2^51468761 is an apocalyptic number.

It is an amenable number.

51468761 is a deficient number, since it is larger than the sum of its proper divisors (1).

51468761 is an equidigital number, since it uses as much as digits as its factorization.

51468761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 38.

The square root of 51468761 is about 7174.1731927798. The cubic root of 51468761 is about 371.9757012880.

The spelling of 51468761 in words is "fifty-one million, four hundred sixty-eight thousand, seven hundred sixty-one".