51483813 has 8 divisors (see below), whose sum is σ = 69808800. Its totient is φ = 33740688.

The previous prime is 51483811. The next prime is 51483851. The reversal of 51483813 is 31838415.

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

It is not a de Polignac number, because 51483813 - 2¹ = 51483811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51483811) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 145258 + ... + 145611.

It is an arithmetic number, because the mean of its divisors is an integer number (8726100).

Almost surely, 2^51483813 is an apocalyptic number.

It is an amenable number.

51483813 is a deficient number, since it is larger than the sum of its proper divisors (18324987).

51483813 is a wasteful number, since it uses less digits than its factorization.

51483813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290931.

The product of its digits is 11520, while the sum is 33.

The square root of 51483813 is about 7175.2221568395. Note that the first 3 decimals coincide. The cubic root of 51483813 is about 372.0119590906.

The spelling of 51483813 in words is "fifty-one million, four hundred eighty-three thousand, eight hundred thirteen".