51744924 has 108 divisors (see below), whose sum is σ = 164407152. Its totient is φ = 13432320.

The previous prime is 51744887. The next prime is 51744937. The reversal of 51744924 is 42944715.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29644 + ... + 31340.

Almost surely, 2^51744924 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 51744924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82203576).

51744924 is an abundant number, since it is smaller than the sum of its proper divisors (112662228).

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

51744924 is a wasteful number, since it uses less digits than its factorization.

51744924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736 (or 1720 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 51744924 is about 7193.3944699286. The cubic root of 51744924 is about 372.6398111876.

The spelling of 51744924 in words is "fifty-one million, seven hundred forty-four thousand, nine hundred twenty-four".