51065874 has 12 divisors (see below), whose sum is σ = 110642766. Its totient is φ = 17021952.

The previous prime is 51065851. The next prime is 51065879. The reversal of 51065874 is 47856015.

51065874 is a `hidden beast` number, since 510 + 65 + 87 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 46335249 + 4730625 = 6807^2 + 2175^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51065879) 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, 1418479 + ... + 1418514.

Almost surely, 2^51065874 is an apocalyptic number.

51065874 is an abundant number, since it is smaller than the sum of its proper divisors (59576892).

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

51065874 is a wasteful number, since it uses less digits than its factorization.

51065874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837001 (or 2836998 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 51065874 is about 7146.0390427145. The cubic root of 51065874 is about 371.0025743120.

The spelling of 51065874 in words is "fifty-one million, sixty-five thousand, eight hundred seventy-four".