51458880 has 168 divisors, whose sum is σ = 179990496. Its totient is φ = 12446720.

The previous prime is 51458873. The next prime is 51458899. The reversal of 51458880 is 8885415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115939 + ... + 116381.

It is an arithmetic number, because the mean of its divisors is an integer number (1071372).

Almost surely, 2^51458880 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 51458880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89995248).

51458880 is an abundant number, since it is smaller than the sum of its proper divisors (128531616).

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

51458880 is a wasteful number, since it uses less digits than its factorization.

51458880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 39.

The square root of 51458880 is about 7173.4845089398. The cubic root of 51458880 is about 371.9518957338.

The spelling of 51458880 in words is "fifty-one million, four hundred fifty-eight thousand, eight hundred eighty".