51000010 has 32 divisors (see below), whose sum is σ = 94089600. Its totient is φ = 19897920.

The previous prime is 50999999. The next prime is 51000041. The reversal of 51000010 is 1000015.

It is a junction number, because it is equal to n+sod(n) for n = 50999957 and 51000002.

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 15 ways as a sum of consecutive naturals, for example, 77061 + ... + 77719.

It is an arithmetic number, because the mean of its divisors is an integer number (2940300).

Almost surely, 2^51000010 is an apocalyptic number.

51000010 is a deficient number, since it is larger than the sum of its proper divisors (43089590).

51000010 is a wasteful number, since it uses less digits than its factorization.

51000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846.

The product of its (nonzero) digits is 5, while the sum is 7.

The square root of 51000010 is about 7141.4291286829. The cubic root of 51000010 is about 370.8430011647.

Adding to 51000010 its reverse (1000015), we get a palindrome (52000025).

The spelling of 51000010 in words is "fifty-one million, ten", and thus it is an aban number and an uban number.