54731906 has 8 divisors (see below), whose sum is σ = 82136460. Its totient is φ = 27353088.

The previous prime is 54731879. The next prime is 54731909. The reversal of 54731906 is 60913745.

It can be written as a sum of positive squares in 2 ways, for example, as 52200625 + 2531281 = 7225^2 + 1591^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54731909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290 + ... + 10466.

Almost surely, 2^54731906 is an apocalyptic number.

54731906 is a deficient number, since it is larger than the sum of its proper divisors (27404554).

54731906 is a wasteful number, since it uses less digits than its factorization.

54731906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12868.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 54731906 is about 7398.1015132262. The cubic root of 54731906 is about 379.6763310381.

The spelling of 54731906 in words is "fifty-four million, seven hundred thirty-one thousand, nine hundred six".