54291609 has 12 divisors (see below), whose sum is σ = 79183936. Its totient is φ = 35842392.

The previous prime is 54291599. The next prime is 54291631. The reversal of 54291609 is 90619245.

54291609 is a `hidden beast` number, since 5 + 42 + 9 + 1 + 609 = 666.

It is not a de Polignac number, because 54291609 - 2⁷ = 54291481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54291649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28357 + ... + 30210.

Almost surely, 2^54291609 is an apocalyptic number.

It is an amenable number.

54291609 is a deficient number, since it is larger than the sum of its proper divisors (24892327).

54291609 is a wasteful number, since it uses less digits than its factorization.

54291609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58676 (or 58673 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 54291609 is about 7368.2839928982. The cubic root of 54291609 is about 378.6554722763.

The spelling of 54291609 in words is "fifty-four million, two hundred ninety-one thousand, six hundred nine".