51641044 has 24 divisors (see below), whose sum is σ = 111227648. Its totient is φ = 20429280.

The previous prime is 51641033. The next prime is 51641047. The reversal of 51641044 is 44014615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51641047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70572 + ... + 71299.

Almost surely, 2^51641044 is an apocalyptic number.

It is an amenable number.

51641044 is an abundant number, since it is smaller than the sum of its proper divisors (59586604).

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

51641044 is a wasteful number, since it uses less digits than its factorization.

51641044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141895 (or 141893 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 51641044 is about 7186.1703291809. The cubic root of 51641044 is about 372.3902810350.

Adding to 51641044 its reverse (44014615), we get a palindrome (95655659).

The spelling of 51641044 in words is "fifty-one million, six hundred forty-one thousand, forty-four".