54512791 has 4 divisors (see below), whose sum is σ = 54572400. Its totient is φ = 54453184.

The previous prime is 54512771. The next prime is 54512807. The reversal of 54512791 is 19721545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19721545 = 5 ⋅3944309.

It is a cyclic number.

It is not a de Polignac number, because 54512791 - 2¹³ = 54504599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54512701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28411 + ... + 30268.

It is an arithmetic number, because the mean of its divisors is an integer number (13643100).

Almost surely, 2^54512791 is an apocalyptic number.

54512791 is a deficient number, since it is larger than the sum of its proper divisors (59609).

54512791 is an equidigital number, since it uses as much as digits as its factorization.

54512791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59608.

The product of its digits is 12600, while the sum is 34.

The square root of 54512791 is about 7383.2777951260. The cubic root of 54512791 is about 379.1689850091.

The spelling of 54512791 in words is "fifty-four million, five hundred twelve thousand, seven hundred ninety-one".