51968629 has 4 divisors (see below), whose sum is σ = 54703840. Its totient is φ = 49233420.

The previous prime is 51968611. The next prime is 51968633. The reversal of 51968629 is 92686915.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51968629 - 2⁵ = 51968597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51968129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1367577 + ... + 1367614.

It is an arithmetic number, because the mean of its divisors is an integer number (13675960).

Almost surely, 2^51968629 is an apocalyptic number.

It is an amenable number.

51968629 is a deficient number, since it is larger than the sum of its proper divisors (2735211).

51968629 is a wasteful number, since it uses less digits than its factorization.

51968629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735210.

The product of its digits is 233280, while the sum is 46.

The square root of 51968629 is about 7208.9270352806. The cubic root of 51968629 is about 373.1760412187.

The spelling of 51968629 in words is "fifty-one million, nine hundred sixty-eight thousand, six hundred twenty-nine".