51662066 has 8 divisors (see below), whose sum is σ = 77656320. Its totient is φ = 25776628.

The previous prime is 51662057. The next prime is 51662069. The reversal of 51662066 is 66026615.

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 (51662069) 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, 26006 + ... + 27921.

It is an arithmetic number, because the mean of its divisors is an integer number (9707040).

Almost surely, 2^51662066 is an apocalyptic number.

51662066 is a deficient number, since it is larger than the sum of its proper divisors (25994254).

51662066 is a wasteful number, since it uses less digits than its factorization.

51662066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54408.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 51662066 is about 7187.6328509461. The cubic root of 51662066 is about 372.4408049714.

The spelling of 51662066 in words is "fifty-one million, six hundred sixty-two thousand, sixty-six".