51166000 has 40 divisors (see below), whose sum is σ = 123724224. Its totient is φ = 20465600.

The previous prime is 51165979. The next prime is 51166043. The reversal of 51166000 is 66115.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10792 + ... + 14791.

Almost surely, 2^51166000 is an apocalyptic number.

51166000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51166000 is an abundant number, since it is smaller than the sum of its proper divisors (72558224).

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

51166000 is a wasteful number, since it uses less digits than its factorization.

51166000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25606 (or 25590 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 51166000 is about 7153.0413112186. The cubic root of 51166000 is about 371.2448936859.

The spelling of 51166000 in words is "fifty-one million, one hundred sixty-six thousand".