51043208 has 8 divisors (see below), whose sum is σ = 95706030. Its totient is φ = 25521600.

The previous prime is 51043207. The next prime is 51043229. The reversal of 51043208 is 80234015.

It can be written as a sum of positive squares in only one way, i.e., 44063044 + 6980164 = 6638^2 + 2642^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (51043207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3190193 + ... + 3190208.

Almost surely, 2^51043208 is an apocalyptic number.

It is an amenable number.

51043208 is a deficient number, since it is larger than the sum of its proper divisors (44662822).

51043208 is a wasteful number, since it uses less digits than its factorization.

51043208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6380407 (or 6380403 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 51043208 is about 7144.4529531658. The cubic root of 51043208 is about 370.9476753605.

The spelling of 51043208 in words is "fifty-one million, forty-three thousand, two hundred eight".