51428160 has 168 divisors, whose sum is σ = 202240896. Its totient is φ = 11750400.

The previous prime is 51428149. The next prime is 51428173. The reversal of 51428160 is 6182415.

It is a tau number, because it is divible by the number of its divisors (168).

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, 18885 + ... + 21435.

Almost surely, 2^51428160 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 51428160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101120448).

51428160 is an abundant number, since it is smaller than the sum of its proper divisors (150812736).

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

51428160 is a wasteful number, since it uses less digits than its factorization.

51428160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2581 (or 2568 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 51428160 is about 7171.3429704624. The cubic root of 51428160 is about 371.8778648651.

The spelling of 51428160 in words is "fifty-one million, four hundred twenty-eight thousand, one hundred sixty".