51676616 has 8 divisors (see below), whose sum is σ = 96893670. Its totient is φ = 25838304.

The previous prime is 51676609. The next prime is 51676621. The reversal of 51676616 is 61667615.

It can be written as a sum of positive squares in only one way, i.e., 41088100 + 10588516 = 6410^2 + 3254^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×51676616² = 5340945282422912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51676616.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3229781 + ... + 3229796.

Almost surely, 2^51676616 is an apocalyptic number.

It is an amenable number.

51676616 is a deficient number, since it is larger than the sum of its proper divisors (45217054).

51676616 is a wasteful number, since it uses less digits than its factorization.

51676616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6459583 (or 6459579 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 51676616 is about 7188.6449348956. The cubic root of 51676616 is about 372.4757661817.

Subtracting 51676616 from its reverse (61667615), we obtain a palindrome (9990999).

The spelling of 51676616 in words is "fifty-one million, six hundred seventy-six thousand, six hundred sixteen".