51164616 has 16 divisors (see below), whose sum is σ = 127911600. Its totient is φ = 17054864.

The previous prime is 51164569. The next prime is 51164629. The reversal of 51164616 is 61646115.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065906 + ... + 1065953.

It is an arithmetic number, because the mean of its divisors is an integer number (7994475).

Almost surely, 2^51164616 is an apocalyptic number.

It is an amenable number.

51164616 is an abundant number, since it is smaller than the sum of its proper divisors (76746984).

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

51164616 is a wasteful number, since it uses less digits than its factorization.

51164616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131868 (or 2131864 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 51164616 is about 7152.9445684976. The cubic root of 51164616 is about 371.2415463617.

The spelling of 51164616 in words is "fifty-one million, one hundred sixty-four thousand, six hundred sixteen".