51589237 has 16 divisors (see below), whose sum is σ = 65715840. Its totient is φ = 39426048.

The previous prime is 51589217. The next prime is 51589249. The reversal of 51589237 is 73298515.

It is a cyclic number.

It is not a de Polignac number, because 51589237 - 2¹¹ = 51587189 is a prime.

It is a super-2 number, since 2×51589237² = 5322898748484338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51589237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51589217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9148 + ... + 13669.

It is an arithmetic number, because the mean of its divisors is an integer number (4107240).

Almost surely, 2^51589237 is an apocalyptic number.

It is an amenable number.

51589237 is a deficient number, since it is larger than the sum of its proper divisors (14126603).

51589237 is a wasteful number, since it uses less digits than its factorization.

51589237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22860.

The product of its digits is 75600, while the sum is 40.

The square root of 51589237 is about 7182.5647926072. The cubic root of 51589237 is about 372.2657103649.

The spelling of 51589237 in words is "fifty-one million, five hundred eighty-nine thousand, two hundred thirty-seven".