51016624 has 20 divisors (see below), whose sum is σ = 100239120. Its totient is φ = 25148480.

The previous prime is 51016613. The next prime is 51016627. The reversal of 51016624 is 42661015.

It is not an unprimeable number, because it can be changed into a prime (51016627) 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, 21319 + ... + 23590.

It is an arithmetic number, because the mean of its divisors is an integer number (5011956).

Almost surely, 2^51016624 is an apocalyptic number.

It is an amenable number.

51016624 is a deficient number, since it is larger than the sum of its proper divisors (49222496).

51016624 is a wasteful number, since it uses less digits than its factorization.

51016624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44988 (or 44982 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 51016624 is about 7142.5922465167. The cubic root of 51016624 is about 370.8832659719.

Adding to 51016624 its reverse (42661015), we get a palindrome (93677639).

The spelling of 51016624 in words is "fifty-one million, sixteen thousand, six hundred twenty-four".