54705645 has 16 divisors (see below), whose sum is σ = 97254720. Its totient is φ = 29176272.

The previous prime is 54705619. The next prime is 54705649. The reversal of 54705645 is 54650745.

It is a happy number.

54705645 is a `hidden beast` number, since 5 + 4 + 7 + 0 + 5 + 645 = 666.

It is not a de Polignac number, because 54705645 - 2⁵ = 54705613 is a prime.

It is a super-3 number, since 3×54705645³ (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 (54705649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202479 + ... + 202748.

It is an arithmetic number, because the mean of its divisors is an integer number (6078420).

Almost surely, 2^54705645 is an apocalyptic number.

It is an amenable number.

54705645 is a deficient number, since it is larger than the sum of its proper divisors (42549075).

54705645 is a wasteful number, since it uses less digits than its factorization.

54705645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405241 (or 405235 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 54705645 is about 7396.3264530441. The cubic root of 54705645 is about 379.6155969619.

The spelling of 54705645 in words is "fifty-four million, seven hundred five thousand, six hundred forty-five".