51487822 has 8 divisors (see below), whose sum is σ = 77263200. Its totient is φ = 25733424.

The previous prime is 51487817. The next prime is 51487837. The reversal of 51487822 is 22878415.

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 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, 4554 + ... + 11122.

It is an arithmetic number, because the mean of its divisors is an integer number (9657900).

Almost surely, 2^51487822 is an apocalyptic number.

51487822 is a deficient number, since it is larger than the sum of its proper divisors (25775378).

51487822 is a wasteful number, since it uses less digits than its factorization.

51487822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10490.

The product of its digits is 35840, while the sum is 37.

The square root of 51487822 is about 7175.5015155737. The cubic root of 51487822 is about 372.0216149232.

The spelling of 51487822 in words is "fifty-one million, four hundred eighty-seven thousand, eight hundred twenty-two".