54453609 has 24 divisors (see below), whose sum is σ = 91986752. Its totient is φ = 30391200.

The previous prime is 54453593. The next prime is 54453611. The reversal of 54453609 is 90635445.

It is a happy number.

54453609 is a `hidden beast` number, since 5 + 4 + 45 + 3 + 609 = 666.

It is not a de Polignac number, because 54453609 - 2⁴ = 54453593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54453629) 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, 7342 + ... + 12759.

Almost surely, 2^54453609 is an apocalyptic number.

It is an amenable number.

54453609 is a deficient number, since it is larger than the sum of its proper divisors (37533143).

54453609 is a wasteful number, since it uses less digits than its factorization.

54453609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20157 (or 20154 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 54453609 is about 7379.2688662225. The cubic root of 54453609 is about 379.0317199499.

The spelling of 54453609 in words is "fifty-four million, four hundred fifty-three thousand, six hundred nine".