51205454132453 has 16 divisors (see below), whose sum is σ = 53710773897984. Its totient is φ = 48759252143040.

The previous prime is 51205454132447. The next prime is 51205454132513. The reversal of 51205454132453 is 35423145450215.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51205454132453 - 2²⁸ = 51205185696997 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 (51205454932453) 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, 37848863 + ... + 39178403.

It is an arithmetic number, because the mean of its divisors is an integer number (3356923368624).

Almost surely, 2^{51205454132453} is an apocalyptic number.

It is an amenable number.

51205454132453 is a deficient number, since it is larger than the sum of its proper divisors (2505319765531).

51205454132453 is a wasteful number, since it uses less digits than its factorization.

51205454132453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351772.

The product of its (nonzero) digits is 1440000, while the sum is 44.

Adding to 51205454132453 its reverse (35423145450215), we get a palindrome (86628599582668).

The spelling of 51205454132453 in words is "fifty-one trillion, two hundred five billion, four hundred fifty-four million, one hundred thirty-two thousand, four hundred fifty-three".