51982066 has 8 divisors (see below), whose sum is σ = 78004224. Its totient is φ = 25980660.

The previous prime is 51982037. The next prime is 51982069. The reversal of 51982066 is 66028915.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (51982069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5391 + ... + 11533.

It is an arithmetic number, because the mean of its divisors is an integer number (9750528).

Almost surely, 2^51982066 is an apocalyptic number.

51982066 is a deficient number, since it is larger than the sum of its proper divisors (26022158).

51982066 is a wasteful number, since it uses less digits than its factorization.

51982066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10376.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 51982066 is about 7209.8589445287. The cubic root of 51982066 is about 373.2082012253.

The spelling of 51982066 in words is "fifty-one million, nine hundred eighty-two thousand, sixty-six".