54113513 has 8 divisors (see below), whose sum is σ = 55477800. Its totient is φ = 52766208.

The previous prime is 54113491. The next prime is 54113519. The reversal of 54113513 is 31531145.

It can be written as a sum of positive squares in 4 ways, for example, as 120409 + 53993104 = 347^2 + 7348^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54113513 - 2¹² = 54109417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54113519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2333 + ... + 10661.

It is an arithmetic number, because the mean of its divisors is an integer number (6934725).

Almost surely, 2^54113513 is an apocalyptic number.

It is an amenable number.

54113513 is a deficient number, since it is larger than the sum of its proper divisors (1364287).

54113513 is an equidigital number, since it uses as much as digits as its factorization.

54113513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8491.

The product of its digits is 900, while the sum is 23.

The square root of 54113513 is about 7356.1887550552. The cubic root of 54113513 is about 378.2409766778.

Adding to 54113513 its reverse (31531145), we get a palindrome (85644658).

The spelling of 54113513 in words is "fifty-four million, one hundred thirteen thousand, five hundred thirteen".