51800834 has 8 divisors (see below), whose sum is σ = 78975228. Its totient is φ = 25475760.

The previous prime is 51800809. The next prime is 51800839. The reversal of 51800834 is 43800815.

It can be written as a sum of positive squares in 2 ways, for example, as 37246609 + 14554225 = 6103^2 + 3815^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 51800797 and 51800806.

It is not an unprimeable number, because it can be changed into a prime (51800839) 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 3 ways as a sum of consecutive naturals, for example, 212177 + ... + 212420.

Almost surely, 2^51800834 is an apocalyptic number.

51800834 is a deficient number, since it is larger than the sum of its proper divisors (27174394).

51800834 is a wasteful number, since it uses less digits than its factorization.

51800834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424660.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 51800834 is about 7197.2796249694. The cubic root of 51800834 is about 372.7739743800.

The spelling of 51800834 in words is "fifty-one million, eight hundred thousand, eight hundred thirty-four".