51935651 has 2 divisors, whose sum is σ = 51935652. Its totient is φ = 51935650.

The previous prime is 51935647. The next prime is 51935659. The reversal of 51935651 is 15653915.

It is a happy number.

51935651 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 51935651 - 2² = 51935647 is a prime.

It is not a weakly prime, because it can be changed into another prime (51935659) 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, 25967825 + 25967826.

It is an arithmetic number, because the mean of its divisors is an integer number (25967826).

Almost surely, 2^51935651 is an apocalyptic number.

51935651 is a deficient number, since it is larger than the sum of its proper divisors (1).

51935651 is an equidigital number, since it uses as much as digits as its factorization.

51935651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20250, while the sum is 35.

The square root of 51935651 is about 7206.6393693593. The cubic root of 51935651 is about 373.0970884364.

The spelling of 51935651 in words is "fifty-one million, nine hundred thirty-five thousand, six hundred fifty-one".