51629759 has 2 divisors, whose sum is σ = 51629760. Its totient is φ = 51629758.

The previous prime is 51629749. The next prime is 51629797. The reversal of 51629759 is 95792615.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51629759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51629749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25814879 + 25814880.

It is an arithmetic number, because the mean of its divisors is an integer number (25814880).

Almost surely, 2^51629759 is an apocalyptic number.

51629759 is a deficient number, since it is larger than the sum of its proper divisors (1).

51629759 is an equidigital number, since it uses as much as digits as its factorization.

51629759 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 170100, while the sum is 44.

The square root of 51629759 is about 7185.3850975435. The cubic root of 51629759 is about 372.3631531915.

The spelling of 51629759 in words is "fifty-one million, six hundred twenty-nine thousand, seven hundred fifty-nine".