54657189 has 6 divisors (see below), whose sum is σ = 78949286. Its totient is φ = 36438120.

The previous prime is 54657173. The next prime is 54657191. The reversal of 54657189 is 98175645.

54657189 is a `hidden beast` number, since 5 + 465 + 7 + 189 = 666.

It can be written as a sum of positive squares in only one way, i.e., 52316289 + 2340900 = 7233^2 + 1530^2 .

It is not a de Polignac number, because 54657189 - 2⁴ = 54657173 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 (54657139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3036502 + ... + 3036519.

Almost surely, 2^54657189 is an apocalyptic number.

It is an amenable number.

54657189 is a deficient number, since it is larger than the sum of its proper divisors (24292097).

54657189 is a wasteful number, since it uses less digits than its factorization.

54657189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6073027 (or 6073024 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 54657189 is about 7393.0500471727. The cubic root of 54657189 is about 379.5034812493.

The spelling of 54657189 in words is "fifty-four million, six hundred fifty-seven thousand, one hundred eighty-nine".