51572880 has 120 divisors (see below), whose sum is σ = 175488768. Its totient is φ = 13571328.

The previous prime is 51572879. The next prime is 51572891. The reversal of 51572880 is 8827515.

51572880 is a `hidden beast` number, since 5 + 1 + 572 + 8 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 59329 + ... + 60191.

Almost surely, 2^51572880 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 51572880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87744384).

51572880 is an abundant number, since it is smaller than the sum of its proper divisors (123915888).

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

51572880 is a wasteful number, since it uses less digits than its factorization.

51572880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965 (or 956 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 51572880 is about 7181.4260422287. The cubic root of 51572880 is about 372.2263624037.

The spelling of 51572880 in words is "fifty-one million, five hundred seventy-two thousand, eight hundred eighty".