51254214513 has 16 divisors (see below), whose sum is σ = 70019643456. Its totient is φ = 33329461760.

The previous prime is 51254214509. The next prime is 51254214527. The reversal of 51254214513 is 31541245215.

It is a cyclic number.

It is not a de Polignac number, because 51254214513 - 2² = 51254214509 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51254214593) 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, 624706 + ... + 701972.

It is an arithmetic number, because the mean of its divisors is an integer number (4376227716).

Almost surely, 2^51254214513 is an apocalyptic number.

It is an amenable number.

51254214513 is a deficient number, since it is larger than the sum of its proper divisors (18765428943).

51254214513 is a wasteful number, since it uses less digits than its factorization.

51254214513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82704.

The product of its digits is 24000, while the sum is 33.

Adding to 51254214513 its reverse (31541245215), we get a palindrome (82795459728).

The spelling of 51254214513 in words is "fifty-one billion, two hundred fifty-four million, two hundred fourteen thousand, five hundred thirteen".