51146636025653 has 16 divisors (see below), whose sum is σ = 58646870029440. Its totient is φ = 43694810392896.

The previous prime is 51146636025649. The next prime is 51146636025679. The reversal of 51146636025653 is 35652063664115.

It is a cyclic number.

It is not a de Polignac number, because 51146636025653 - 2² = 51146636025649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51146636025595 and 51146636025604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51146636025553) 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, 39709283 + ... + 40977071.

It is an arithmetic number, because the mean of its divisors is an integer number (3665429376840).

Almost surely, 2^{51146636025653} is an apocalyptic number.

It is an amenable number.

51146636025653 is a deficient number, since it is larger than the sum of its proper divisors (7500234003787).

51146636025653 is a wasteful number, since it uses less digits than its factorization.

51146636025653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286876.

The product of its (nonzero) digits is 11664000, while the sum is 53.

Adding to 51146636025653 its reverse (35652063664115), we get a palindrome (86798699689768).

The spelling of 51146636025653 in words is "fifty-one trillion, one hundred forty-six billion, six hundred thirty-six million, twenty-five thousand, six hundred fifty-three".