54011990 has 16 divisors (see below), whose sum is σ = 97308000. Its totient is φ = 21585600.

The previous prime is 54011989. The next prime is 54012011. The reversal of 54011990 is 9911045.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 16511 + ... + 19509.

It is an arithmetic number, because the mean of its divisors is an integer number (6081750).

Almost surely, 2^54011990 is an apocalyptic number.

54011990 is a deficient number, since it is larger than the sum of its proper divisors (43296010).

54011990 is a wasteful number, since it uses less digits than its factorization.

54011990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4807.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 54011990 is about 7349.2849992363. The cubic root of 54011990 is about 378.0042878119.

The spelling of 54011990 in words is "fifty-four million, eleven thousand, nine hundred ninety".