51196780 has 12 divisors (see below), whose sum is σ = 107513280. Its totient is φ = 20478704.

The previous prime is 51196757. The next prime is 51196801. The reversal of 51196780 is 8769115.

51196780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51196780² = 5242220564736800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1279900 + ... + 1279939.

It is an arithmetic number, because the mean of its divisors is an integer number (8959440).

Almost surely, 2^51196780 is an apocalyptic number.

It is an amenable number.

51196780 is an abundant number, since it is smaller than the sum of its proper divisors (56316500).

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

51196780 is a wasteful number, since it uses less digits than its factorization.

51196780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559848 (or 2559846 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 51196780 is about 7155.1925201213. The cubic root of 51196780 is about 371.3193221946.

The spelling of 51196780 in words is "fifty-one million, one hundred ninety-six thousand, seven hundred eighty".