51204213636514 has 4 divisors (see below), whose sum is σ = 76806320454774. Its totient is φ = 25602106818256.

The previous prime is 51204213636497. The next prime is 51204213636517. The reversal of 51204213636514 is 41563631240215.

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

It can be written as a sum of positive squares in only one way, i.e., 32186616555625 + 19017597080889 = 5673325^2 + 4360917^2 .

It is a super-2 number, since 2×51204213636514² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51204213636517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12801053409127 + ... + 12801053409130.

Almost surely, 2^{51204213636514} is an apocalyptic number.

51204213636514 is a deficient number, since it is larger than the sum of its proper divisors (25602106818260).

51204213636514 is a wasteful number, since it uses less digits than its factorization.

51204213636514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25602106818259.

The product of its (nonzero) digits is 518400, while the sum is 43.

Adding to 51204213636514 its reverse (41563631240215), we get a palindrome (92767844876729).

The spelling of 51204213636514 in words is "fifty-one trillion, two hundred four billion, two hundred thirteen million, six hundred thirty-six thousand, five hundred fourteen".