54115378 has 4 divisors (see below), whose sum is σ = 81173070. Its totient is φ = 27057688.

The previous prime is 54115319. The next prime is 54115379. The reversal of 54115378 is 87351145.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28440889 + 25674489 = 5333^2 + 5067^2 .

It is not an unprimeable number, because it can be changed into a prime (54115379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13528843 + ... + 13528846.

Almost surely, 2^54115378 is an apocalyptic number.

54115378 is a deficient number, since it is larger than the sum of its proper divisors (27057692).

54115378 is a wasteful number, since it uses less digits than its factorization.

54115378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27057691.

The product of its digits is 16800, while the sum is 34.

The square root of 54115378 is about 7356.3155179750. The cubic root of 54115378 is about 378.2453219345.

The spelling of 54115378 in words is "fifty-four million, one hundred fifteen thousand, three hundred seventy-eight".