51051208 has 16 divisors (see below), whose sum is σ = 103084380. Its totient is φ = 23562048.

The previous prime is 51051179. The next prime is 51051241. The reversal of 51051208 is 80215015.

51051208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 42536484 + 8514724 = 6522^2 + 2918^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245335 + ... + 245542.

Almost surely, 2^51051208 is an apocalyptic number.

It is an amenable number.

51051208 is an abundant number, since it is smaller than the sum of its proper divisors (52033172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51051208 is a wasteful number, since it uses less digits than its factorization.

51051208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490896 (or 490892 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 51051208 is about 7145.0128061467. The cubic root of 51051208 is about 370.9670538864.

The spelling of 51051208 in words is "fifty-one million, fifty-one thousand, two hundred eight".