54678457 has 4 divisors (see below), whose sum is σ = 55710180. Its totient is φ = 53646736.

The previous prime is 54678439. The next prime is 54678467. The reversal of 54678457 is 75487645.

It is a happy number.

54678457 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, and also an emirpimes, since its reverse is a distinct semiprime: 75487645 = 5 ⋅15097529.

It can be written as a sum of positive squares in 2 ways, for example, as 49406841 + 5271616 = 7029^2 + 2296^2 .

It is a cyclic number.

It is not a de Polignac number, because 54678457 - 2¹¹ = 54676409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54678467) 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, 515782 + ... + 515887.

It is an arithmetic number, because the mean of its divisors is an integer number (13927545).

Almost surely, 2^54678457 is an apocalyptic number.

It is an amenable number.

54678457 is a deficient number, since it is larger than the sum of its proper divisors (1031723).

54678457 is a wasteful number, since it uses less digits than its factorization.

54678457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031722.

The product of its digits is 940800, while the sum is 46.

The square root of 54678457 is about 7394.4882852027. The cubic root of 54678457 is about 379.5526985223.

It can be divided in two parts, 5467 and 8457, that added together give a square (13924 = 118²).

The spelling of 54678457 in words is "fifty-four million, six hundred seventy-eight thousand, four hundred fifty-seven".