51010616 has 16 divisors (see below), whose sum is σ = 96856800. Its totient is φ = 25182144.

The previous prime is 51010613. The next prime is 51010627. The reversal of 51010616 is 61601015.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51010613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39725 + ... + 40988.

It is an arithmetic number, because the mean of its divisors is an integer number (6053550).

Almost surely, 2^51010616 is an apocalyptic number.

It is an amenable number.

51010616 is a deficient number, since it is larger than the sum of its proper divisors (45846184).

51010616 is a wasteful number, since it uses less digits than its factorization.

51010616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80798 (or 80794 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 51010616 is about 7142.1716585364. The cubic root of 51010616 is about 370.8687063117.

The spelling of 51010616 in words is "fifty-one million, ten thousand, six hundred sixteen".