51935977 has 2 divisors, whose sum is σ = 51935978. Its totient is φ = 51935976.

The previous prime is 51935963. The next prime is 51936007. The reversal of 51935977 is 77953915.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32672656 + 19263321 = 5716^2 + 4389^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51935977 is a prime.

It is not a weakly prime, because it can be changed into another prime (51935927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25967988 + 25967989.

It is an arithmetic number, because the mean of its divisors is an integer number (25967989).

Almost surely, 2^51935977 is an apocalyptic number.

It is an amenable number.

51935977 is a deficient number, since it is larger than the sum of its proper divisors (1).

51935977 is an equidigital number, since it uses as much as digits as its factorization.

51935977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 297675, while the sum is 46.

The square root of 51935977 is about 7206.6619873559. The cubic root of 51935977 is about 373.0978690781.

The spelling of 51935977 in words is "fifty-one million, nine hundred thirty-five thousand, nine hundred seventy-seven".