51629742 has 24 divisors (see below), whose sum is σ = 114594480. Its totient is φ = 16789920.

The previous prime is 51629741. The next prime is 51629749. The reversal of 51629742 is 24792615.

It is a junction number, because it is equal to n+sod(n) for n = 51629697 and 51629706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51629741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34242 + ... + 35717.

It is an arithmetic number, because the mean of its divisors is an integer number (4774770).

Almost surely, 2^51629742 is an apocalyptic number.

51629742 is an abundant number, since it is smaller than the sum of its proper divisors (62964738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51629742 is a wasteful number, since it uses less digits than its factorization.

51629742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70008 (or 70005 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 51629742 is about 7185.3839145866. The cubic root of 51629742 is about 372.3631123225.

The spelling of 51629742 in words is "fifty-one million, six hundred twenty-nine thousand, seven hundred forty-two".