54691878 has 16 divisors (see below), whose sum is σ = 109477296. Its totient is φ = 18215040.

The previous prime is 54691877. The next prime is 54691891. The reversal of 54691878 is 87819645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54691877) 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, 5418 + ... + 11778.

It is an arithmetic number, because the mean of its divisors is an integer number (6842331).

Almost surely, 2^54691878 is an apocalyptic number.

54691878 is an abundant number, since it is smaller than the sum of its proper divisors (54785418).

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

54691878 is a wasteful number, since it uses less digits than its factorization.

54691878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7799.

The product of its digits is 483840, while the sum is 48.

The square root of 54691878 is about 7395.3957297767. The cubic root of 54691878 is about 379.5837501182.

The spelling of 54691878 in words is "fifty-four million, six hundred ninety-one thousand, eight hundred seventy-eight".