51488760 has 64 divisors (see below), whose sum is σ = 155124000. Its totient is φ = 13671936.

The previous prime is 51488753. The next prime is 51488761. The reversal of 51488760 is 6788415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51488761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32466 + ... + 34014.

Almost surely, 2^51488760 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 51488760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77562000).

51488760 is an abundant number, since it is smaller than the sum of its proper divisors (103635240).

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

51488760 is a wasteful number, since it uses less digits than its factorization.

51488760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840 (or 1836 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 51488760 is about 7175.5668765610. The cubic root of 51488760 is about 372.0238740603.

The spelling of 51488760 in words is "fifty-one million, four hundred eighty-eight thousand, seven hundred sixty".