54021892 has 12 divisors (see below), whose sum is σ = 94682700. Its totient is φ = 26969696.

The previous prime is 54021881. The next prime is 54021901. The reversal of 54021892 is 29812045.

It can be written as a sum of positive squares in 2 ways, for example, as 33825856 + 20196036 = 5816^2 + 4494^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7267 + ... + 12682.

It is an arithmetic number, because the mean of its divisors is an integer number (7890225).

Almost surely, 2^54021892 is an apocalyptic number.

It is an amenable number.

54021892 is a deficient number, since it is larger than the sum of its proper divisors (40660808).

54021892 is a wasteful number, since it uses less digits than its factorization.

54021892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20630 (or 20628 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 54021892 is about 7349.9586393394. The cubic root of 54021892 is about 378.0273862002.

The spelling of 54021892 in words is "fifty-four million, twenty-one thousand, eight hundred ninety-two".