51881774 has 8 divisors (see below), whose sum is σ = 88940208. Its totient is φ = 22235040.

The previous prime is 51881737. The next prime is 51881801. The reversal of 51881774 is 47718815.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1852907 + ... + 1852934.

It is an arithmetic number, because the mean of its divisors is an integer number (11117526).

Almost surely, 2^51881774 is an apocalyptic number.

51881774 is a deficient number, since it is larger than the sum of its proper divisors (37058434).

51881774 is a wasteful number, since it uses less digits than its factorization.

51881774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3705850.

The product of its digits is 62720, while the sum is 41.

The square root of 51881774 is about 7202.9003880381. The cubic root of 51881774 is about 372.9680293260.

The spelling of 51881774 in words is "fifty-one million, eight hundred eighty-one thousand, seven hundred seventy-four".