51007066 has 12 divisors (see below), whose sum is σ = 84098826. Its totient is φ = 23184920.

The previous prime is 51007063. The next prime is 51007087. The reversal of 51007066 is 66070015.

It can be written as a sum of positive squares in only one way, i.e., 49406841 + 1600225 = 7029^2 + 1265^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51007066.

It is not an unprimeable number, because it can be changed into a prime (51007063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 105145 + ... + 105628.

Almost surely, 2^51007066 is an apocalyptic number.

51007066 is a deficient number, since it is larger than the sum of its proper divisors (33091760).

51007066 is a wasteful number, since it uses less digits than its factorization.

51007066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210797 (or 210786 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 51007066 is about 7141.9231303620. The cubic root of 51007066 is about 370.8601027793.

The spelling of 51007066 in words is "fifty-one million, seven thousand, sixty-six".