54181478 has 16 divisors (see below), whose sum is σ = 87768576. Its totient is φ = 24936960.

The previous prime is 54181471. The next prime is 54181507. The reversal of 54181478 is 87418145.

It is a happy number.

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 (54181471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7238 + ... + 12678.

It is an arithmetic number, because the mean of its divisors is an integer number (5485536).

Almost surely, 2^54181478 is an apocalyptic number.

54181478 is a deficient number, since it is larger than the sum of its proper divisors (33587098).

54181478 is a wasteful number, since it uses less digits than its factorization.

54181478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5839.

The product of its digits is 35840, while the sum is 38.

The square root of 54181478 is about 7360.8068851180. The cubic root of 54181478 is about 378.3992636539.

The spelling of 54181478 in words is "fifty-four million, one hundred eighty-one thousand, four hundred seventy-eight".