54384749 has 4 divisors (see below), whose sum is σ = 54406620. Its totient is φ = 54362880.

The previous prime is 54384727. The next prime is 54384761. The reversal of 54384749 is 94748345.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38663524 + 15721225 = 6218^2 + 3965^2 .

It is a cyclic number.

It is not a de Polignac number, because 54384749 - 2¹² = 54380653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54084749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6644 + ... + 12365.

It is an arithmetic number, because the mean of its divisors is an integer number (13601655).

Almost surely, 2^54384749 is an apocalyptic number.

It is an amenable number.

54384749 is a deficient number, since it is larger than the sum of its proper divisors (21871).

54384749 is a wasteful number, since it uses less digits than its factorization.

54384749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21870.

The product of its digits is 483840, while the sum is 44.

The square root of 54384749 is about 7374.6016163587. The cubic root of 54384749 is about 378.8718827711.

The spelling of 54384749 in words is "fifty-four million, three hundred eighty-four thousand, seven hundred forty-nine".