51589066 has 12 divisors (see below), whose sum is σ = 81671922. Its totient is φ = 24436584.

The previous prime is 51589061. The next prime is 51589073. The reversal of 51589066 is 66098515.

It can be written as a sum of positive squares in only one way, i.e., 35820225 + 15768841 = 5985^2 + 3971^2 .

It is a super-2 number, since 2×51589066² = 5322863461504712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51589061) 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, 35005 + ... + 36448.

Almost surely, 2^51589066 is an apocalyptic number.

51589066 is a deficient number, since it is larger than the sum of its proper divisors (30082856).

51589066 is a wasteful number, since it uses less digits than its factorization.

51589066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71493 (or 71474 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 51589066 is about 7182.5528887715. The cubic root of 51589066 is about 372.2652990549.

The spelling of 51589066 in words is "fifty-one million, five hundred eighty-nine thousand, sixty-six".