51584260897 has 12 divisors (see below), whose sum is σ = 55914516864. Its totient is φ = 47567647920.

The previous prime is 51584260883. The next prime is 51584260939. The reversal of 51584260897 is 79806248515.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-51584260897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51584260837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10872 + ... + 321382.

It is an arithmetic number, because the mean of its divisors is an integer number (4659543072).

Almost surely, 2^51584260897 is an apocalyptic number.

It is an amenable number.

51584260897 is a deficient number, since it is larger than the sum of its proper divisors (4330255967).

51584260897 is a wasteful number, since it uses less digits than its factorization.

51584260897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311520 (or 311507 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 55.

It can be divided in two parts, 51584 and 260897, that added together give a square (312481 = 559²).

The spelling of 51584260897 in words is "fifty-one billion, five hundred eighty-four million, two hundred sixty thousand, eight hundred ninety-seven".