54509285 has 4 divisors (see below), whose sum is σ = 65411148. Its totient is φ = 43607424.

The previous prime is 54509269. The next prime is 54509303. The reversal of 54509285 is 58290545.

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 8282884 + 46226401 = 2878^2 + 6799^2 .

It is a cyclic number.

It is not a de Polignac number, because 54509285 - 2⁴ = 54509269 is a prime.

It is a super-2 number, since 2×54509285² = 5942524302422450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5450924 + ... + 5450933.

It is an arithmetic number, because the mean of its divisors is an integer number (16352787).

Almost surely, 2^54509285 is an apocalyptic number.

It is an amenable number.

54509285 is a deficient number, since it is larger than the sum of its proper divisors (10901863).

54509285 is a wasteful number, since it uses less digits than its factorization.

54509285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10901862.

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 54509285 is about 7383.0403628857. The cubic root of 54509285 is about 379.1608560609.

The spelling of 54509285 in words is "fifty-four million, five hundred nine thousand, two hundred eighty-five".