54813513 has 4 divisors (see below), whose sum is σ = 73084688. Its totient is φ = 36542340.

The previous prime is 54813511. The next prime is 54813523. The reversal of 54813513 is 31531845.

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 not a de Polignac number, because 54813513 - 2¹ = 54813511 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54813511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9135583 + ... + 9135588.

It is an arithmetic number, because the mean of its divisors is an integer number (18271172).

Almost surely, 2^54813513 is an apocalyptic number.

It is an amenable number.

54813513 is a deficient number, since it is larger than the sum of its proper divisors (18271175).

54813513 is a wasteful number, since it uses less digits than its factorization.

54813513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18271174.

The product of its digits is 7200, while the sum is 30.

The square root of 54813513 is about 7403.6148603233. The cubic root of 54813513 is about 379.8649404608.

The spelling of 54813513 in words is "fifty-four million, eight hundred thirteen thousand, five hundred thirteen".