54591478 has 4 divisors (see below), whose sum is σ = 81887220. Its totient is φ = 27295738.

The previous prime is 54591473. The next prime is 54591479. The reversal of 54591478 is 87419545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87419545 = 5 ⋅17483909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54591473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13647868 + ... + 13647871.

It is an arithmetic number, because the mean of its divisors is an integer number (20471805).

Almost surely, 2^54591478 is an apocalyptic number.

54591478 is a deficient number, since it is larger than the sum of its proper divisors (27295742).

54591478 is a wasteful number, since it uses less digits than its factorization.

54591478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27295741.

The product of its digits is 201600, while the sum is 43.

The square root of 54591478 is about 7388.6046043891. The cubic root of 54591478 is about 379.3513356425.

The spelling of 54591478 in words is "fifty-four million, five hundred ninety-one thousand, four hundred seventy-eight".