54565478 has 16 divisors (see below), whose sum is σ = 94541904. Its totient is φ = 23343360.

The previous prime is 54565477. The next prime is 54565481. The reversal of 54565478 is 87456545.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54565471) 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 7 ways as a sum of consecutive naturals, for example, 72575 + ... + 73322.

It is an arithmetic number, because the mean of its divisors is an integer number (5908869).

Almost surely, 2^54565478 is an apocalyptic number.

54565478 is a deficient number, since it is larger than the sum of its proper divisors (39976426).

54565478 is a wasteful number, since it uses less digits than its factorization.

54565478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145927.

The product of its digits is 672000, while the sum is 44.

The square root of 54565478 is about 7386.8449286553. The cubic root of 54565478 is about 379.2911021816.

The spelling of 54565478 in words is "fifty-four million, five hundred sixty-five thousand, four hundred seventy-eight".