51913108 has 12 divisors (see below), whose sum is σ = 97836340. Its totient is φ = 23959872.

The previous prime is 51913079. The next prime is 51913117. The reversal of 51913108 is 80131915.

It can be written as a sum of positive squares in 2 ways, for example, as 21641104 + 30272004 = 4652^2 + 5502^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499113 + ... + 499216.

Almost surely, 2^51913108 is an apocalyptic number.

It is an amenable number.

51913108 is a deficient number, since it is larger than the sum of its proper divisors (45923232).

51913108 is a wasteful number, since it uses less digits than its factorization.

51913108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998346 (or 998344 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 51913108 is about 7205.0751557496. The cubic root of 51913108 is about 373.0430989019.

The spelling of 51913108 in words is "fifty-one million, nine hundred thirteen thousand, one hundred eight".