51268629 has 4 divisors (see below), whose sum is σ = 68358176. Its totient is φ = 34179084.

The previous prime is 51268589. The next prime is 51268639. The reversal of 51268629 is 92686215.

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 51268629 - 2⁷ = 51268501 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 (51268639) 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 3 ways as a sum of consecutive naturals, for example, 8544769 + ... + 8544774.

It is an arithmetic number, because the mean of its divisors is an integer number (17089544).

Almost surely, 2^51268629 is an apocalyptic number.

It is an amenable number.

51268629 is a deficient number, since it is larger than the sum of its proper divisors (17089547).

51268629 is a wasteful number, since it uses less digits than its factorization.

51268629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17089546.

The product of its digits is 51840, while the sum is 39.

The square root of 51268629 is about 7160.2115192220. The cubic root of 51268629 is about 371.4929428233.

The spelling of 51268629 in words is "fifty-one million, two hundred sixty-eight thousand, six hundred twenty-nine".