51566016 has 28 divisors (see below), whose sum is σ = 136435592. Its totient is φ = 17188608.

The previous prime is 51565967. The next prime is 51566027. The reversal of 51566016 is 61066515.

It is a super-2 number, since 2×51566016² = 5318108012224512, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 134095 + ... + 134478.

Almost surely, 2^51566016 is an apocalyptic number.

It is an amenable number.

51566016 is an abundant number, since it is smaller than the sum of its proper divisors (84869576).

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

51566016 is a wasteful number, since it uses less digits than its factorization.

51566016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268588 (or 268578 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 51566016 is about 7180.9481268145. The cubic root of 51566016 is about 372.2098480709.

The spelling of 51566016 in words is "fifty-one million, five hundred sixty-six thousand, sixteen".