51565060 has 12 divisors (see below), whose sum is σ = 108286668. Its totient is φ = 20626016.

The previous prime is 51565051. The next prime is 51565061. The reversal of 51565060 is 6056515.

It can be written as a sum of positive squares in 2 ways, for example, as 36942084 + 14622976 = 6078^2 + 3824^2 .

It is not an unprimeable number, because it can be changed into a prime (51565061) 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, 1289107 + ... + 1289146.

It is an arithmetic number, because the mean of its divisors is an integer number (9023889).

Almost surely, 2^51565060 is an apocalyptic number.

It is an amenable number.

51565060 is an abundant number, since it is smaller than the sum of its proper divisors (56721608).

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

51565060 is a wasteful number, since it uses less digits than its factorization.

51565060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2578262 (or 2578260 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 51565060 is about 7180.8815614798. The cubic root of 51565060 is about 372.2075478815.

The spelling of 51565060 in words is "fifty-one million, five hundred sixty-five thousand, sixty".