51544842 has 16 divisors (see below), whose sum is σ = 104629152. Its totient is φ = 16925040.

The previous prime is 51544841. The next prime is 51544849. The reversal of 51544842 is 24844515.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51544841) 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, 63709 + ... + 64512.

It is an arithmetic number, because the mean of its divisors is an integer number (6539322).

Almost surely, 2^51544842 is an apocalyptic number.

51544842 is an abundant number, since it is smaller than the sum of its proper divisors (53084310).

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

51544842 is a wasteful number, since it uses less digits than its factorization.

51544842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128293.

The product of its digits is 25600, while the sum is 33.

The square root of 51544842 is about 7179.4736575880. The cubic root of 51544842 is about 372.1588955839.

The spelling of 51544842 in words is "fifty-one million, five hundred forty-four thousand, eight hundred forty-two".