53145415513 has 4 divisors (see below), whose sum is σ = 53785721808. Its totient is φ = 52505109220.

The previous prime is 53145415511. The next prime is 53145415523. The reversal of 53145415513 is 31551454135.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53145415513 - 2¹ = 53145415511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53145415511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320153023 + ... + 320153188.

It is an arithmetic number, because the mean of its divisors is an integer number (13446430452).

Almost surely, 2^53145415513 is an apocalyptic number.

It is an amenable number.

53145415513 is a deficient number, since it is larger than the sum of its proper divisors (640306295).

53145415513 is an equidigital number, since it uses as much as digits as its factorization.

53145415513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640306294.

The product of its digits is 90000, while the sum is 37.

Adding to 53145415513 its reverse (31551454135), we get a palindrome (84696869648).

The spelling of 53145415513 in words is "fifty-three billion, one hundred forty-five million, four hundred fifteen thousand, five hundred thirteen".