51305044 has 24 divisors (see below), whose sum is σ = 103049408. Its totient is φ = 21893760.

The previous prime is 51305017. The next prime is 51305047. The reversal of 51305044 is 44050315.

51305044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51305047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2947 + ... + 10549.

Almost surely, 2^51305044 is an apocalyptic number.

It is an amenable number.

51305044 is an abundant number, since it is smaller than the sum of its proper divisors (51744364).

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

51305044 is a wasteful number, since it uses less digits than its factorization.

51305044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7855 (or 7853 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 51305044 is about 7162.7539396520. The cubic root of 51305044 is about 371.5808764790.

Adding to 51305044 its reverse (44050315), we get a palindrome (95355359).

The spelling of 51305044 in words is "fifty-one million, three hundred five thousand, forty-four".