51616672 has 24 divisors (see below), whose sum is σ = 101852100. Its totient is φ = 25749504.

The previous prime is 51616667. The next prime is 51616679. The reversal of 51616672 is 27661615.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 45643536 + 5973136 = 6756^2 + 2444^2 .

It is not an unprimeable number, because it can be changed into a prime (51616679) 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, 14704 + ... + 17872.

Almost surely, 2^51616672 is an apocalyptic number.

It is an amenable number.

51616672 is a deficient number, since it is larger than the sum of its proper divisors (50235428).

51616672 is a wasteful number, since it uses less digits than its factorization.

51616672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3688 (or 3680 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 51616672 is about 7184.4743718660. The cubic root of 51616672 is about 372.3316885964.

The spelling of 51616672 in words is "fifty-one million, six hundred sixteen thousand, six hundred seventy-two".