51183244 has 36 divisors (see below), whose sum is σ = 106635144. Its totient is φ = 21422016.

The previous prime is 51183241. The next prime is 51183259. The reversal of 51183244 is 44238115.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (51183241) 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, 5392 + ... + 11464.

Almost surely, 2^51183244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51183244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53317572).

51183244 is an abundant number, since it is smaller than the sum of its proper divisors (55451900).

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

51183244 is a wasteful number, since it uses less digits than its factorization.

51183244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6134 (or 6125 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 51183244 is about 7154.2465710933. The cubic root of 51183244 is about 371.2865947368.

The spelling of 51183244 in words is "fifty-one million, one hundred eighty-three thousand, two hundred forty-four".