54749491 has 2 divisors, whose sum is σ = 54749492. Its totient is φ = 54749490.

The previous prime is 54749417. The next prime is 54749509. The reversal of 54749491 is 19494745.

54749491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54749491 - 2²³ = 46360883 is a prime.

It is a super-3 number, since 3×54749491³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (54749411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27374745 + 27374746.

It is an arithmetic number, because the mean of its divisors is an integer number (27374746).

Almost surely, 2^54749491 is an apocalyptic number.

54749491 is a deficient number, since it is larger than the sum of its proper divisors (1).

54749491 is an equidigital number, since it uses as much as digits as its factorization.

54749491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 54749491 is about 7399.2898983619. The cubic root of 54749491 is about 379.7169891834.

The spelling of 54749491 in words is "fifty-four million, seven hundred forty-nine thousand, four hundred ninety-one".