54646389 has 24 divisors (see below), whose sum is σ = 90421760. Its totient is φ = 31153248.

The previous prime is 54646379. The next prime is 54646393. The reversal of 54646389 is 98364645.

54646389 is a `hidden beast` number, since 5 + 4 + 6 + 4 + 638 + 9 = 666.

It is not a de Polignac number, because 54646389 - 2⁸ = 54646133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54646309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37527 + ... + 38955.

Almost surely, 2^54646389 is an apocalyptic number.

It is an amenable number.

54646389 is a deficient number, since it is larger than the sum of its proper divisors (35775371).

54646389 is a wasteful number, since it uses less digits than its factorization.

54646389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049 (or 2046 counting only the distinct ones).

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

The square root of 54646389 is about 7392.3195953638. The cubic root of 54646389 is about 379.4784835765.

The spelling of 54646389 in words is "fifty-four million, six hundred forty-six thousand, three hundred eighty-nine".