54949878 has 24 divisors (see below), whose sum is σ = 119932488. Its totient is φ = 18182112.

The previous prime is 54949871. The next prime is 54949883. The reversal of 54949878 is 87894945.

54949878 is a `hidden beast` number, since 549 + 4 + 98 + 7 + 8 = 666.

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 (54949871) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 8676 + ... + 13607.

It is an arithmetic number, because the mean of its divisors is an integer number (4997187).

Almost surely, 2^54949878 is an apocalyptic number.

54949878 is an abundant number, since it is smaller than the sum of its proper divisors (64982610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54949878 is a wasteful number, since it uses less digits than its factorization.

54949878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22428 (or 22425 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 54949878 is about 7412.8184923145. The cubic root of 54949878 is about 380.1796887946.

The spelling of 54949878 in words is "fifty-four million, nine hundred forty-nine thousand, eight hundred seventy-eight".