51616008 has 64 divisors (see below), whose sum is σ = 150936000. Its totient is φ = 16298496.

The previous prime is 51615959. The next prime is 51616009. The reversal of 51616008 is 80061615.

51616008 is a `hidden beast` number, since 51 + 6 + 1 + 600 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (51616009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2185 + ... + 10392.

It is an arithmetic number, because the mean of its divisors is an integer number (2358375).

Almost surely, 2^51616008 is an apocalyptic number.

It is an amenable number.

51616008 is an abundant number, since it is smaller than the sum of its proper divisors (99319992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51616008 is a wasteful number, since it uses less digits than its factorization.

51616008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12611 (or 12601 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 51616008 is about 7184.4281609603. The cubic root of 51616008 is about 372.3300920237.

The spelling of 51616008 in words is "fifty-one million, six hundred sixteen thousand, eight".