51066012 has 12 divisors (see below), whose sum is σ = 119154056. Its totient is φ = 17022000.

The previous prime is 51066007. The next prime is 51066023. The reversal of 51066012 is 21066015.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 51066012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2127739 + ... + 2127762.

Almost surely, 2^51066012 is an apocalyptic number.

It is an amenable number.

51066012 is an abundant number, since it is smaller than the sum of its proper divisors (68088044).

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

51066012 is a wasteful number, since it uses less digits than its factorization.

51066012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4255508 (or 4255506 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 51066012 is about 7146.0486984067. The cubic root of 51066012 is about 371.0029085098.

The spelling of 51066012 in words is "fifty-one million, sixty-six thousand, twelve".