51008612 has 12 divisors (see below), whose sum is σ = 90100080. Its totient is φ = 25265736.

The previous prime is 51008611. The next prime is 51008623. The reversal of 51008612 is 21680015.

It is not an unprimeable number, because it can be changed into a prime (51008611) 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, 59162 + ... + 60017.

It is an arithmetic number, because the mean of its divisors is an integer number (7508340).

Almost surely, 2^51008612 is an apocalyptic number.

It is an amenable number.

51008612 is a deficient number, since it is larger than the sum of its proper divisors (39091468).

51008612 is a wasteful number, since it uses less digits than its factorization.

51008612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119290 (or 119288 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 51008612 is about 7142.0313636948. The cubic root of 51008612 is about 370.8638496062.

Adding to 51008612 its reverse (21680015), we get a palindrome (72688627).

The spelling of 51008612 in words is "fifty-one million, eight thousand, six hundred twelve".