51178560 has 112 divisors (see below), whose sum is σ = 164592000. Its totient is φ = 13471744.

The previous prime is 51178559. The next prime is 51178597. The reversal of 51178560 is 6587115.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85141 + ... + 85739.

Almost surely, 2^51178560 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 51178560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82296000).

51178560 is an abundant number, since it is smaller than the sum of its proper divisors (113413440).

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

51178560 is a wasteful number, since it uses less digits than its factorization.

51178560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708 (or 698 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 51178560 is about 7153.9192055823. The cubic root of 51178560 is about 371.2752683773.

The spelling of 51178560 in words is "fifty-one million, one hundred seventy-eight thousand, five hundred sixty".