54978313 has 4 divisors (see below), whose sum is σ = 59207428. Its totient is φ = 50749200.

The previous prime is 54978311. The next prime is 54978317. The reversal of 54978313 is 31387945.

54978313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 34257609 + 20720704 = 5853^2 + 4552^2 .

It is a cyclic number.

It is not a de Polignac number, because 54978313 - 2¹ = 54978311 is a prime.

It is a super-2 number, since 2×54978313² = 6045229800651938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54978311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2114538 + ... + 2114563.

It is an arithmetic number, because the mean of its divisors is an integer number (14801857).

Almost surely, 2^54978313 is an apocalyptic number.

It is an amenable number.

54978313 is a deficient number, since it is larger than the sum of its proper divisors (4229115).

54978313 is a wasteful number, since it uses less digits than its factorization.

54978313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229114.

The product of its digits is 90720, while the sum is 40.

The square root of 54978313 is about 7414.7362056920. The cubic root of 54978313 is about 380.2452548806.

The spelling of 54978313 in words is "fifty-four million, nine hundred seventy-eight thousand, three hundred thirteen".