51155876 has 12 divisors (see below), whose sum is σ = 89679408. Its totient is φ = 25533192.

The previous prime is 51155851. The next prime is 51155903. The reversal of 51155876 is 67855115.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8546 + ... + 13241.

It is an arithmetic number, because the mean of its divisors is an integer number (7473284).

Almost surely, 2^51155876 is an apocalyptic number.

It is an amenable number.

51155876 is a deficient number, since it is larger than the sum of its proper divisors (38523532).

51155876 is a wasteful number, since it uses less digits than its factorization.

51155876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22378 (or 22376 counting only the distinct ones).

The product of its digits is 42000, while the sum is 38.

The square root of 51155876 is about 7152.3336051949. Note that the first 3 decimals coincide. The cubic root of 51155876 is about 371.2204065185.

The spelling of 51155876 in words is "fifty-one million, one hundred fifty-five thousand, eight hundred seventy-six".