51664482 has 12 divisors (see below), whose sum is σ = 111939750. Its totient is φ = 17221488.

The previous prime is 51664451. The next prime is 51664517. The reversal of 51664482 is 28446615.

51664482 is a `hidden beast` number, since 5 + 1 + 6 + 644 + 8 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 41873841 + 9790641 = 6471^2 + 3129^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1435107 + ... + 1435142.

Almost surely, 2^51664482 is an apocalyptic number.

51664482 is an abundant number, since it is smaller than the sum of its proper divisors (60275268).

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

51664482 is a wasteful number, since it uses less digits than its factorization.

51664482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2870257 (or 2870254 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 51664482 is about 7187.8009154400. The cubic root of 51664482 is about 372.4466106687.

The spelling of 51664482 in words is "fifty-one million, six hundred sixty-four thousand, four hundred eighty-two".