54615313 has 4 divisors (see below), whose sum is σ = 55510708. Its totient is φ = 53719920.

The previous prime is 54615311. The next prime is 54615347. The reversal of 54615313 is 31351645.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27751824 + 26863489 = 5268^2 + 5183^2 .

It is a cyclic number.

It is not a de Polignac number, because 54615313 - 2¹ = 54615311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54615311) 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, 447606 + ... + 447727.

It is an arithmetic number, because the mean of its divisors is an integer number (13877677).

Almost surely, 2^54615313 is an apocalyptic number.

It is an amenable number.

54615313 is a deficient number, since it is larger than the sum of its proper divisors (895395).

54615313 is an equidigital number, since it uses as much as digits as its factorization.

54615313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895394.

The product of its digits is 5400, while the sum is 28.

The square root of 54615313 is about 7390.2173851653. The cubic root of 54615313 is about 379.4065367094.

Adding to 54615313 its reverse (31351645), we get a palindrome (85966958).

The spelling of 54615313 in words is "fifty-four million, six hundred fifteen thousand, three hundred thirteen".