51585258514 has 16 divisors (see below), whose sum is σ = 81482590080. Its totient is φ = 24425467920.

The previous prime is 51585258509. The next prime is 51585258539. The reversal of 51585258514 is 41585258515.

It is a super-2 number, since 2×51585258514² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170277 + ... + 363544.

It is an arithmetic number, because the mean of its divisors is an integer number (5092661880).

Almost surely, 2^51585258514 is an apocalyptic number.

51585258514 is a deficient number, since it is larger than the sum of its proper divisors (29897331566).

51585258514 is a wasteful number, since it uses less digits than its factorization.

51585258514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536385.

The product of its digits is 1600000, while the sum is 49.

Subtracting from 51585258514 its reverse (41585258515), we obtain a palindrome (9999999999).

The spelling of 51585258514 in words is "fifty-one billion, five hundred eighty-five million, two hundred fifty-eight thousand, five hundred fourteen".