54457478 has 4 divisors (see below), whose sum is σ = 81686220. Its totient is φ = 27228738.

The previous prime is 54457463. The next prime is 54457493. The reversal of 54457478 is 87475445.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87475445 = 5 ⋅17495089.

It is an interprime number because it is at equal distance from previous prime (54457463) and next prime (54457493).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13614368 + ... + 13614371.

It is an arithmetic number, because the mean of its divisors is an integer number (20421555).

Almost surely, 2^54457478 is an apocalyptic number.

54457478 is a deficient number, since it is larger than the sum of its proper divisors (27228742).

54457478 is a wasteful number, since it uses less digits than its factorization.

54457478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27228741.

The product of its digits is 627200, while the sum is 44.

The square root of 54457478 is about 7379.5310149087. The cubic root of 54457478 is about 379.0406966368.

The spelling of 54457478 in words is "fifty-four million, four hundred fifty-seven thousand, four hundred seventy-eight".