54943649 has 16 divisors (see below), whose sum is σ = 59693760. Its totient is φ = 50400000.

The previous prime is 54943607. The next prime is 54943657. The reversal of 54943649 is 94634945.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 54943649 - 2¹² = 54939553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54943699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195389 + ... + 195669.

It is an arithmetic number, because the mean of its divisors is an integer number (3730860).

Almost surely, 2^54943649 is an apocalyptic number.

It is an amenable number.

54943649 is a deficient number, since it is larger than the sum of its proper divisors (4750111).

54943649 is a wasteful number, since it uses less digits than its factorization.

54943649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592.

The product of its digits is 466560, while the sum is 44.

The square root of 54943649 is about 7412.3983298255. The cubic root of 54943649 is about 380.1653228011.

The spelling of 54943649 in words is "fifty-four million, nine hundred forty-three thousand, six hundred forty-nine".