51066704 has 20 divisors (see below), whose sum is σ = 106553076. Its totient is φ = 23569152.

The previous prime is 51066667. The next prime is 51066707. The reversal of 51066704 is 40766015.

It can be written as a sum of positive squares in 2 ways, for example, as 14440000 + 36626704 = 3800^2 + 6052^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51066707) 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, 122549 + ... + 122964.

Almost surely, 2^51066704 is an apocalyptic number.

It is an amenable number.

51066704 is an abundant number, since it is smaller than the sum of its proper divisors (55486372).

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

51066704 is a wasteful number, since it uses less digits than its factorization.

51066704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245534 (or 245528 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 51066704 is about 7146.0971166085. The cubic root of 51066704 is about 371.0045843332.

The spelling of 51066704 in words is "fifty-one million, sixty-six thousand, seven hundred four".