51061616 has 10 divisors (see below), whose sum is σ = 98931912. Its totient is φ = 25530800.

The previous prime is 51061613. The next prime is 51061639. The reversal of 51061616 is 61616015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51061613) 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 as a sum of consecutive naturals, namely, 1595660 + ... + 1595691.

Almost surely, 2^51061616 is an apocalyptic number.

It is an amenable number.

51061616 is a deficient number, since it is larger than the sum of its proper divisors (47870296).

51061616 is a wasteful number, since it uses less digits than its factorization.

51061616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3191359 (or 3191353 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 51061616 is about 7145.7411092202. The cubic root of 51061616 is about 370.9922623186.

It can be divided in two parts, 510 and 61616, that added together give a palindrome (62126).

The spelling of 51061616 in words is "fifty-one million, sixty-one thousand, six hundred sixteen".