51166511 has 8 divisors (see below), whose sum is σ = 56764800. Its totient is φ = 45726040.

The previous prime is 51166471. The next prime is 51166519. The reversal of 51166511 is 11566115.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51166511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51166519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38771 + ... + 40068.

It is an arithmetic number, because the mean of its divisors is an integer number (7095600).

Almost surely, 2^51166511 is an apocalyptic number.

51166511 is a deficient number, since it is larger than the sum of its proper divisors (5598289).

51166511 is a wasteful number, since it uses less digits than its factorization.

51166511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78909.

The product of its digits is 900, while the sum is 26.

The square root of 51166511 is about 7153.0770302018. The cubic root of 51166511 is about 371.2461295685.

The spelling of 51166511 in words is "fifty-one million, one hundred sixty-six thousand, five hundred eleven".