54930409 has 4 divisors (see below), whose sum is σ = 55144404. Its totient is φ = 54716416.

The previous prime is 54930401. The next prime is 54930413. The reversal of 54930409 is 90403945.

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 33028009 + 21902400 = 5747^2 + 4680^2 .

It is a cyclic number.

It is not a de Polignac number, because 54930409 - 2³ = 54930401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54930401) 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, 106612 + ... + 107125.

It is an arithmetic number, because the mean of its divisors is an integer number (13786101).

Almost surely, 2^54930409 is an apocalyptic number.

It is an amenable number.

54930409 is a deficient number, since it is larger than the sum of its proper divisors (213995).

54930409 is a wasteful number, since it uses less digits than its factorization.

54930409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213994.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 54930409 is about 7411.5051777625. The cubic root of 54930409 is about 380.1347836740.

The spelling of 54930409 in words is "fifty-four million, nine hundred thirty thousand, four hundred nine".