54894991 has 2 divisors, whose sum is σ = 54894992. Its totient is φ = 54894990.

The previous prime is 54894979. The next prime is 54895003. The reversal of 54894991 is 19949845.

It is a happy number.

54894991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (54894979) and next prime (54895003).

It is a cyclic number.

It is not a de Polignac number, because 54894991 - 2²¹ = 52797839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54894901) 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, 27447495 + 27447496.

It is an arithmetic number, because the mean of its divisors is an integer number (27447496).

Almost surely, 2^54894991 is an apocalyptic number.

54894991 is a deficient number, since it is larger than the sum of its proper divisors (1).

54894991 is an equidigital number, since it uses as much as digits as its factorization.

54894991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 49.

The square root of 54894991 is about 7409.1153992903. The cubic root of 54894991 is about 380.0530650732.

The spelling of 54894991 in words is "fifty-four million, eight hundred ninety-four thousand, nine hundred ninety-one".