51390334 has 8 divisors (see below), whose sum is σ = 77119488. Its totient is φ = 25683840.

The previous prime is 51390331. The next prime is 51390347. The reversal of 51390334 is 43309315.

51390334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (51390331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2179 + ... + 10369.

It is an arithmetic number, because the mean of its divisors is an integer number (9639936).

Almost surely, 2^51390334 is an apocalyptic number.

51390334 is a deficient number, since it is larger than the sum of its proper divisors (25729154).

51390334 is a wasteful number, since it uses less digits than its factorization.

51390334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11330.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 51390334 is about 7168.7051829462. The cubic root of 51390334 is about 371.7866690283.

Adding to 51390334 its reverse (43309315), we get a palindrome (94699649).

The spelling of 51390334 in words is "fifty-one million, three hundred ninety thousand, three hundred thirty-four".