51466164 has 12 divisors (see below), whose sum is σ = 120087744. Its totient is φ = 17155384.

The previous prime is 51466139. The next prime is 51466187. The reversal of 51466164 is 46166415.

It is a happy number.

51466164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2144412 + ... + 2144435.

It is an arithmetic number, because the mean of its divisors is an integer number (10007312).

Almost surely, 2^51466164 is an apocalyptic number.

It is an amenable number.

51466164 is an abundant number, since it is smaller than the sum of its proper divisors (68621580).

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

51466164 is a wasteful number, since it uses less digits than its factorization.

51466164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4288854 (or 4288852 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 51466164 is about 7173.9921940298. The cubic root of 51466164 is about 371.9694448253.

The spelling of 51466164 in words is "fifty-one million, four hundred sixty-six thousand, one hundred sixty-four".