51936779 has 2 divisors, whose sum is σ = 51936780. Its totient is φ = 51936778.

The previous prime is 51936769. The next prime is 51936809. The reversal of 51936779 is 97763915.

It is a happy number.

51936779 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 is a cyclic number.

It is not a de Polignac number, because 51936779 - 2¹⁶ = 51871243 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (51936769) 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, 25968389 + 25968390.

It is an arithmetic number, because the mean of its divisors is an integer number (25968390).

Almost surely, 2^51936779 is an apocalyptic number.

51936779 is a deficient number, since it is larger than the sum of its proper divisors (1).

51936779 is an equidigital number, since it uses as much as digits as its factorization.

51936779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 357210, while the sum is 47.

The square root of 51936779 is about 7206.7176301004. The cubic root of 51936779 is about 373.0997895384.

The spelling of 51936779 in words is "fifty-one million, nine hundred thirty-six thousand, seven hundred seventy-nine".