54122491 has 2 divisors, whose sum is σ = 54122492. Its totient is φ = 54122490.

The previous prime is 54122459. The next prime is 54122539. The reversal of 54122491 is 19422145.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54122491 - 2⁵ = 54122459 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54122791) 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, 27061245 + 27061246.

It is an arithmetic number, because the mean of its divisors is an integer number (27061246).

Almost surely, 2^54122491 is an apocalyptic number.

54122491 is a deficient number, since it is larger than the sum of its proper divisors (1).

54122491 is an equidigital number, since it uses as much as digits as its factorization.

54122491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 28.

The square root of 54122491 is about 7356.7989642235. The cubic root of 54122491 is about 378.2618935709.

It can be divided in two parts, 541 and 22491, that added together give a palindrome (23032).

The spelling of 54122491 in words is "fifty-four million, one hundred twenty-two thousand, four hundred ninety-one".