54485191 has 4 divisors (see below), whose sum is σ = 55046992. Its totient is φ = 53923392.

The previous prime is 54485131. The next prime is 54485213. The reversal of 54485191 is 19158445.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19158445 = 5 ⋅3831689.

It is a cyclic number.

It is not a de Polignac number, because 54485191 - 2⁹ = 54484679 is a prime.

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 54485191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54485111) 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, 280755 + ... + 280948.

It is an arithmetic number, because the mean of its divisors is an integer number (13761748).

Almost surely, 2^54485191 is an apocalyptic number.

54485191 is a deficient number, since it is larger than the sum of its proper divisors (561801).

54485191 is an equidigital number, since it uses as much as digits as its factorization.

54485191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561800.

The product of its digits is 28800, while the sum is 37.

The square root of 54485191 is about 7381.4084699331. The cubic root of 54485191 is about 379.1049827174.

The spelling of 54485191 in words is "fifty-four million, four hundred eighty-five thousand, one hundred ninety-one".