51744480 has 192 divisors, whose sum is σ = 175633920. Its totient is φ = 12773376.

The previous prime is 51744401. The next prime is 51744521. The reversal of 51744480 is 8444715.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 474666 + ... + 474774.

It is an arithmetic number, because the mean of its divisors is an integer number (914760).

Almost surely, 2^51744480 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 51744480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87816960).

51744480 is an abundant number, since it is smaller than the sum of its proper divisors (123889440).

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

51744480 is a wasteful number, since it uses less digits than its factorization.

51744480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 51744480 is about 7193.3636082156. The cubic root of 51744480 is about 372.6387453662.

The spelling of 51744480 in words is "fifty-one million, seven hundred forty-four thousand, four hundred eighty".