51589065 has 32 divisors (see below), whose sum is σ = 91155456. Its totient is φ = 24704960.

The previous prime is 51589061. The next prime is 51589073. The reversal of 51589065 is 56098515.

It is not a de Polignac number, because 51589065 - 2² = 51589061 is a prime.

It is a super-2 number, since 2×51589065² = 5322863255148450, 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 31 ways as a sum of consecutive naturals, for example, 11812 + ... + 15578.

It is an arithmetic number, because the mean of its divisors is an integer number (2848608).

Almost surely, 2^51589065 is an apocalyptic number.

51589065 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51589065 is a deficient number, since it is larger than the sum of its proper divisors (39566391).

51589065 is a wasteful number, since it uses less digits than its factorization.

51589065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3869.

The product of its (nonzero) digits is 54000, while the sum is 39.

The square root of 51589065 is about 7182.5528191584. The cubic root of 51589065 is about 372.2652966496.

The spelling of 51589065 in words is "fifty-one million, five hundred eighty-nine thousand, sixty-five".