51212434 has 64 divisors (see below), whose sum is σ = 101283840. Its totient is φ = 18869760.

The previous prime is 51212407. The next prime is 51212459. The reversal of 51212434 is 43421215.

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 31 ways as a sum of consecutive naturals, for example, 163462 + ... + 163774.

It is an arithmetic number, because the mean of its divisors is an integer number (1582560).

Almost surely, 2^51212434 is an apocalyptic number.

51212434 is a deficient number, since it is larger than the sum of its proper divisors (50071406).

51212434 is a wasteful number, since it uses less digits than its factorization.

51212434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395.

The product of its digits is 960, while the sum is 22.

The square root of 51212434 is about 7156.2863274187. The cubic root of 51212434 is about 371.3571633787.

Adding to 51212434 its reverse (43421215), we get a palindrome (94633649).

The spelling of 51212434 in words is "fifty-one million, two hundred twelve thousand, four hundred thirty-four".