51589461277 has 4 divisors (see below), whose sum is σ = 52296166300. Its totient is φ = 50882756256.

The previous prime is 51589461271. The next prime is 51589461359. The reversal of 51589461277 is 77216498515.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36473742361 + 15115718916 = 190981^2 + 122946^2 .

It is a cyclic number.

It is not a de Polignac number, because 51589461277 - 2¹⁹ = 51588936989 is a prime.

It is a super-2 number, since 2×51589461277² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51589461271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353352402 + ... + 353352547.

It is an arithmetic number, because the mean of its divisors is an integer number (13074041575).

Almost surely, 2^51589461277 is an apocalyptic number.

It is an amenable number.

51589461277 is a deficient number, since it is larger than the sum of its proper divisors (706705023).

51589461277 is an equidigital number, since it uses as much as digits as its factorization.

51589461277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706705022.

The product of its digits is 4233600, while the sum is 55.

The spelling of 51589461277 in words is "fifty-one billion, five hundred eighty-nine million, four hundred sixty-one thousand, two hundred seventy-seven".