54356978 has 16 divisors (see below), whose sum is σ = 89249496. Its totient is φ = 24675840.

The previous prime is 54356947. The next prime is 54356983. The reversal of 54356978 is 87965345.

It can be written as a sum of positive squares in 4 ways, for example, as 34492129 + 19864849 = 5873^2 + 4457^2 .

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 15551 + ... + 18722.

Almost surely, 2^54356978 is an apocalyptic number.

54356978 is a deficient number, since it is larger than the sum of its proper divisors (34892518).

54356978 is a wasteful number, since it uses less digits than its factorization.

54356978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34349.

The product of its digits is 907200, while the sum is 47.

The square root of 54356978 is about 7372.7184945582. The cubic root of 54356978 is about 378.8073828106.

The spelling of 54356978 in words is "fifty-four million, three hundred fifty-six thousand, nine hundred seventy-eight".