54273645 has 40 divisors (see below), whose sum is σ = 100667160. Its totient is φ = 27941760.

The previous prime is 54273641. The next prime is 54273647. The reversal of 54273645 is 54637245.

54273645 is a `hidden beast` number, since 5 + 4 + 2 + 7 + 3 + 645 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3849444 + 50424201 = 1962^2 + 7101^2 .

It is not a de Polignac number, because 54273645 - 2² = 54273641 is a prime.

It is a super-3 number, since 3×54273645³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54273641) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9435 + ... + 14055.

It is an arithmetic number, because the mean of its divisors is an integer number (2516679).

Almost surely, 2^54273645 is an apocalyptic number.

It is an amenable number.

54273645 is a deficient number, since it is larger than the sum of its proper divisors (46393515).

54273645 is a wasteful number, since it uses less digits than its factorization.

54273645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4667 (or 4658 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 54273645 is about 7367.0648836562. The cubic root of 54273645 is about 378.6137045127.

The spelling of 54273645 in words is "fifty-four million, two hundred seventy-three thousand, six hundred forty-five".