54127978 has 8 divisors (see below), whose sum is σ = 83991780. Its totient is φ = 26130720.

The previous prime is 54127943. The next prime is 54127981. The reversal of 54127978 is 87972145.

It can be written as a sum of positive squares in 2 ways, for example, as 49603849 + 4524129 = 7043^2 + 2127^2 .

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, 466563 + ... + 466678.

Almost surely, 2^54127978 is an apocalyptic number.

54127978 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

54127978 is a deficient number, since it is larger than the sum of its proper divisors (29863802).

54127978 is a wasteful number, since it uses less digits than its factorization.

54127978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933272.

The product of its digits is 141120, while the sum is 43.

The square root of 54127978 is about 7357.1718751161. The cubic root of 54127978 is about 378.2746760134.

The spelling of 54127978 in words is "fifty-four million, one hundred twenty-seven thousand, nine hundred seventy-eight".