51376629 has 4 divisors (see below), whose sum is σ = 68502176. Its totient is φ = 34251084.

The previous prime is 51376573. The next prime is 51376631. The reversal of 51376629 is 92667315.

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 not a de Polignac number, because 51376629 - 2⁸ = 51376373 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 (51336629) 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 in 3 ways as a sum of consecutive naturals, for example, 8562769 + ... + 8562774.

It is an arithmetic number, because the mean of its divisors is an integer number (17125544).

Almost surely, 2^51376629 is an apocalyptic number.

It is an amenable number.

51376629 is a deficient number, since it is larger than the sum of its proper divisors (17125547).

51376629 is a wasteful number, since it uses less digits than its factorization.

51376629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17125546.

The product of its digits is 68040, while the sum is 39.

The square root of 51376629 is about 7167.7492283143. The cubic root of 51376629 is about 371.7536161892.

The spelling of 51376629 in words is "fifty-one million, three hundred seventy-six thousand, six hundred twenty-nine".