51030568 has 16 divisors (see below), whose sum is σ = 98016660. Its totient is φ = 24892800.

The previous prime is 51030533. The next prime is 51030569. The reversal of 51030568 is 86503015.

It can be written as a sum of positive squares in 2 ways, for example, as 50951044 + 79524 = 7138^2 + 282^2 .

It is not an unprimeable number, because it can be changed into a prime (51030569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77463 + ... + 78118.

Almost surely, 2^51030568 is an apocalyptic number.

It is an amenable number.

51030568 is a deficient number, since it is larger than the sum of its proper divisors (46986092).

51030568 is a wasteful number, since it uses less digits than its factorization.

51030568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155628 (or 155624 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 51030568 is about 7143.5682960269. The cubic root of 51030568 is about 370.9170531623.

The spelling of 51030568 in words is "fifty-one million, thirty thousand, five hundred sixty-eight".