54112991 has 2 divisors, whose sum is σ = 54112992. Its totient is φ = 54112990.

The previous prime is 54112973. The next prime is 54112999. The reversal of 54112991 is 19921145.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54112991 - 2¹⁴ = 54096607 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54112999) 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 as a sum of consecutive naturals, namely, 27056495 + 27056496.

It is an arithmetic number, because the mean of its divisors is an integer number (27056496).

Almost surely, 2^54112991 is an apocalyptic number.

54112991 is a deficient number, since it is larger than the sum of its proper divisors (1).

54112991 is an equidigital number, since it uses as much as digits as its factorization.

54112991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 32.

The square root of 54112991 is about 7356.1532746402. The cubic root of 54112991 is about 378.2397604540.

The spelling of 54112991 in words is "fifty-four million, one hundred twelve thousand, nine hundred ninety-one".