54547281 has 6 divisors (see below), whose sum is σ = 78790530. Its totient is φ = 36364848.

The previous prime is 54547267. The next prime is 54547301. The reversal of 54547281 is 18274545.

It can be written as a sum of positive squares in only one way, i.e., 42185025 + 12362256 = 6495^2 + 3516^2 .

It is not a de Polignac number, because 54547281 - 2⁵ = 54547249 is a prime.

It is a super-2 number, since 2×54547281² = 5950811728985922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54547201) 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, 3030396 + ... + 3030413.

It is an arithmetic number, because the mean of its divisors is an integer number (13131755).

Almost surely, 2^54547281 is an apocalyptic number.

It is an amenable number.

54547281 is a deficient number, since it is larger than the sum of its proper divisors (24243249).

54547281 is a wasteful number, since it uses less digits than its factorization.

54547281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060815 (or 6060812 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 54547281 is about 7385.6131092821. The cubic root of 54547281 is about 379.2489343261.

The spelling of 54547281 in words is "fifty-four million, five hundred forty-seven thousand, two hundred eighty-one".