51838478 has 8 divisors (see below), whose sum is σ = 79566168. Its totient is φ = 25316424.

The previous prime is 51838477. The next prime is 51838487. The reversal of 51838478 is 87483815.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51838477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301301 + ... + 301472.

It is an arithmetic number, because the mean of its divisors is an integer number (9945771).

Almost surely, 2^51838478 is an apocalyptic number.

51838478 is a deficient number, since it is larger than the sum of its proper divisors (27727690).

51838478 is a wasteful number, since it uses less digits than its factorization.

51838478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602818.

The product of its digits is 215040, while the sum is 44.

The square root of 51838478 is about 7199.8943047798. The cubic root of 51838478 is about 372.8642515986.

The spelling of 51838478 in words is "fifty-one million, eight hundred thirty-eight thousand, four hundred seventy-eight".