51929629 has 8 divisors (see below), whose sum is σ = 52831800. Its totient is φ = 51035136.

The previous prime is 51929609. The next prime is 51929639. The reversal of 51929629 is 92692915.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 161604 + 51768025 = 402^2 + 7195^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51929629 - 2¹¹ = 51927581 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 (51929609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12657 + ... + 16249.

It is an arithmetic number, because the mean of its divisors is an integer number (6603975).

Almost surely, 2^51929629 is an apocalyptic number.

It is an amenable number.

51929629 is a deficient number, since it is larger than the sum of its proper divisors (902171).

51929629 is a wasteful number, since it uses less digits than its factorization.

51929629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3839.

The product of its digits is 87480, while the sum is 43.

The square root of 51929629 is about 7206.2215480791. The cubic root of 51929629 is about 373.0826675298.

The spelling of 51929629 in words is "fifty-one million, nine hundred twenty-nine thousand, six hundred twenty-nine".