51455031111013 has 16 divisors (see below), whose sum is σ = 52754149463040. Its totient is φ = 50164775968000.

The previous prime is 51455031110999. The next prime is 51455031111019. The reversal of 51455031111013 is 31011113055415.

It is a cyclic number.

It is not a de Polignac number, because 51455031111013 - 2⁹ = 51455031110501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51455031111019) 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, 11652423 + ... + 15449563.

It is an arithmetic number, because the mean of its divisors is an integer number (3297134341440).

Almost surely, 2^{51455031111013} is an apocalyptic number.

It is an amenable number.

51455031111013 is a deficient number, since it is larger than the sum of its proper divisors (1299118352027).

51455031111013 is a wasteful number, since it uses less digits than its factorization.

51455031111013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798308.

The product of its (nonzero) digits is 4500, while the sum is 31.

Adding to 51455031111013 its reverse (31011113055415), we get a palindrome (82466144166428).

The spelling of 51455031111013 in words is "fifty-one trillion, four hundred fifty-five billion, thirty-one million, one hundred eleven thousand, thirteen".