54522991 has 2 divisors, whose sum is σ = 54522992. Its totient is φ = 54522990.

The previous prime is 54522977. The next prime is 54522997. The reversal of 54522991 is 19922545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54522991 - 2¹³ = 54514799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54522991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54522997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27261495 + 27261496.

It is an arithmetic number, because the mean of its divisors is an integer number (27261496).

Almost surely, 2^54522991 is an apocalyptic number.

54522991 is a deficient number, since it is larger than the sum of its proper divisors (1).

54522991 is an equidigital number, since it uses as much as digits as its factorization.

54522991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 37.

The square root of 54522991 is about 7383.9685129339. The cubic root of 54522991 is about 379.1926325628.

The spelling of 54522991 in words is "fifty-four million, five hundred twenty-two thousand, nine hundred ninety-one".