51611874 has 8 divisors (see below), whose sum is σ = 103223760. Its totient is φ = 17203956.

The previous prime is 51611821. The next prime is 51611891. The reversal of 51611874 is 47811615.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

51611874 is an admirable 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, 4300984 + ... + 4300995.

It is an arithmetic number, because the mean of its divisors is an integer number (12902970).

Almost surely, 2^51611874 is an apocalyptic number.

51611874 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51611874 is a wasteful number, since it uses less digits than its factorization.

51611874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8601984.

The product of its digits is 6720, while the sum is 33.

The square root of 51611874 is about 7184.1404496293. The cubic root of 51611874 is about 372.3201516083.

The spelling of 51611874 in words is "fifty-one million, six hundred eleven thousand, eight hundred seventy-four".