51160780 has 24 divisors (see below), whose sum is σ = 117205200. Its totient is φ = 18603840.

The previous prime is 51160777. The next prime is 51160793. The reversal of 51160780 is 8706115.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116055 + ... + 116494.

It is an arithmetic number, because the mean of its divisors is an integer number (4883550).

Almost surely, 2^51160780 is an apocalyptic number.

It is an amenable number.

51160780 is an abundant number, since it is smaller than the sum of its proper divisors (66044420).

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

51160780 is a wasteful number, since it uses less digits than its factorization.

51160780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232569 (or 232567 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 51160780 is about 7152.6764221514. The cubic root of 51160780 is about 371.2322683471.

Adding to 51160780 its reverse (8706115), we get a palindrome (59866895).

The spelling of 51160780 in words is "fifty-one million, one hundred sixty thousand, seven hundred eighty".