51820010 has 16 divisors (see below), whose sum is σ = 101755872. Its totient is φ = 18843600.

The previous prime is 51820009. The next prime is 51820037. The reversal of 51820010 is 1002815.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235436 + ... + 235655.

It is an arithmetic number, because the mean of its divisors is an integer number (6359742).

Almost surely, 2^51820010 is an apocalyptic number.

51820010 is a deficient number, since it is larger than the sum of its proper divisors (49935862).

51820010 is a wasteful number, since it uses less digits than its factorization.

51820010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471109.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 51820010 is about 7198.6116717045. The cubic root of 51820010 is about 372.8199674094.

Adding to 51820010 its reverse (1002815), we get a palindrome (52822825).

The spelling of 51820010 in words is "fifty-one million, eight hundred twenty thousand, ten".