54386649 has 12 divisors (see below), whose sum is σ = 78631956. Its totient is φ = 36223872.

The previous prime is 54386641. The next prime is 54386653. The reversal of 54386649 is 94668345.

54386649 is a `hidden beast` number, since 543 + 8 + 66 + 49 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 46785600 + 7601049 = 6840^2 + 2757^2 .

It is not a de Polignac number, because 54386649 - 2³ = 54386641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54386641) 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 in 11 ways as a sum of consecutive naturals, for example, 10789 + ... + 15005.

It is an arithmetic number, because the mean of its divisors is an integer number (6552663).

Almost surely, 2^54386649 is an apocalyptic number.

It is an amenable number.

54386649 is a deficient number, since it is larger than the sum of its proper divisors (24245307).

54386649 is a wasteful number, since it uses less digits than its factorization.

54386649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5656 (or 5653 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 54386649 is about 7374.7304357515. The cubic root of 54386649 is about 378.8762948425.

The spelling of 54386649 in words is "fifty-four million, three hundred eighty-six thousand, six hundred forty-nine".