54863649 has 15 divisors (see below), whose sum is σ = 82056513. Its totient is φ = 36531324.

The previous prime is 54863629. The next prime is 54863651. The reversal of 54863649 is 94636845.

The square root of 54863649 is 7407.

It is a perfect power (a square), and thus also a powerful number.

54863649 is a `hidden beast` number, since 5 + 4 + 8 + 636 + 4 + 9 = 666.

It is not a de Polignac number, because 54863649 - 2¹³ = 54855457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54863609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 66252 + ... + 67074.

Almost surely, 2^54863649 is an apocalyptic number.

54863649 is the 7407-th square number.

54863649 is the 3704-th centered octagonal number.

It is an amenable number.

54863649 is a deficient number, since it is larger than the sum of its proper divisors (27192864).

54863649 is an frugal number, since it uses more digits than its factorization.

54863649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658 (or 826 counting only the distinct ones).

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

The cubic root of 54863649 is about 379.9807215520.

The spelling of 54863649 in words is "fifty-four million, eight hundred sixty-three thousand, six hundred forty-nine".