54756945 has 16 divisors (see below), whose sum is σ = 97345920. Its totient is φ = 29203632.

The previous prime is 54756941. The next prime is 54756967. The reversal of 54756945 is 54965745.

54756945 is a `hidden beast` number, since 5 + 47 + 569 + 45 = 666.

It is not a de Polignac number, because 54756945 - 2² = 54756941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 54756945.

It is not an unprimeable number, because it can be changed into a prime (54756941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202669 + ... + 202938.

It is an arithmetic number, because the mean of its divisors is an integer number (6084120).

Almost surely, 2^54756945 is an apocalyptic number.

It is an amenable number.

54756945 is a deficient number, since it is larger than the sum of its proper divisors (42588975).

54756945 is a wasteful number, since it uses less digits than its factorization.

54756945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405621 (or 405615 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 54756945 is about 7399.7935782020. The cubic root of 54756945 is about 379.7342208930.

The spelling of 54756945 in words is "fifty-four million, seven hundred fifty-six thousand, nine hundred forty-five".