54011978 has 8 divisors (see below), whose sum is σ = 83811780. Its totient is φ = 26074720.

The previous prime is 54011959. The next prime is 54011989. The reversal of 54011978 is 87911045.

It can be written as a sum of positive squares in 2 ways, for example, as 45792289 + 8219689 = 6767^2 + 2867^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 465563 + ... + 465678.

Almost surely, 2^54011978 is an apocalyptic number.

54011978 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

54011978 is a deficient number, since it is larger than the sum of its proper divisors (29799802).

54011978 is a wasteful number, since it uses less digits than its factorization.

54011978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931272.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 54011978 is about 7349.2841828303. The cubic root of 54011978 is about 378.0042598178.

The spelling of 54011978 in words is "fifty-four million, eleven thousand, nine hundred seventy-eight".