51516208 has 20 divisors (see below), whose sum is σ = 101450848. Its totient is φ = 25335360.

The previous prime is 51516187. The next prime is 51516221. The reversal of 51516208 is 80261515.

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, 25416 + ... + 27367.

Almost surely, 2^51516208 is an apocalyptic number.

It is an amenable number.

51516208 is a deficient number, since it is larger than the sum of its proper divisors (49934640).

51516208 is a wasteful number, since it uses less digits than its factorization.

51516208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52852 (or 52846 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 51516208 is about 7177.4792232371. The cubic root of 51516208 is about 372.0899693746.

The spelling of 51516208 in words is "fifty-one million, five hundred sixteen thousand, two hundred eight".