51119880 has 128 divisors (see below), whose sum is σ = 184550400. Its totient is φ = 11066112.

The previous prime is 51119863. The next prime is 51119911. The reversal of 51119880 is 8891115.

It is a super-2 number, since 2×51119880² = 5226484262428800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14359 + ... + 17561.

It is an arithmetic number, because the mean of its divisors is an integer number (1441800).

Almost surely, 2^51119880 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 51119880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92275200).

51119880 is an abundant number, since it is smaller than the sum of its proper divisors (133430520).

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

51119880 is a wasteful number, since it uses less digits than its factorization.

51119880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3243 (or 3239 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 33.

The square root of 51119880 is about 7149.8167808693. The cubic root of 51119880 is about 371.1333159357.

The spelling of 51119880 in words is "fifty-one million, one hundred nineteen thousand, eight hundred eighty".