54839811 has 16 divisors (see below), whose sum is σ = 78913184. Its totient is φ = 33675264.

The previous prime is 54839803. The next prime is 54839821. The reversal of 54839811 is 11893845.

It is not a de Polignac number, because 54839811 - 2³ = 54839803 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54839811.

It is not an unprimeable number, because it can be changed into a prime (54839821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21285 + ... + 23721.

It is an arithmetic number, because the mean of its divisors is an integer number (4932074).

Almost surely, 2^54839811 is an apocalyptic number.

54839811 is a deficient number, since it is larger than the sum of its proper divisors (24073373).

54839811 is a wasteful number, since it uses less digits than its factorization.

54839811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030.

The product of its digits is 34560, while the sum is 39.

The square root of 54839811 is about 7405.3906716661. The cubic root of 54839811 is about 379.9256802948.

The spelling of 54839811 in words is "fifty-four million, eight hundred thirty-nine thousand, eight hundred eleven".