54664545 has 32 divisors (see below), whose sum is σ = 94735872. Its totient is φ = 26756352.

The previous prime is 54664543. The next prime is 54664549. The reversal of 54664545 is 54546645.

It is not a de Polignac number, because 54664545 - 2¹ = 54664543 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (54664543) 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 31 ways as a sum of consecutive naturals, for example, 37704 + ... + 39126.

It is an arithmetic number, because the mean of its divisors is an integer number (2960496).

Almost surely, 2^54664545 is an apocalyptic number.

54664545 is the 4269-th octagonal number.

It is an amenable number.

54664545 is a deficient number, since it is larger than the sum of its proper divisors (40071327).

54664545 is a wasteful number, since it uses less digits than its factorization.

54664545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641.

The product of its digits is 288000, while the sum is 39.

The square root of 54664545 is about 7393.5475247002. The cubic root of 54664545 is about 379.5205055569.

It can be divided in two parts, 5466 and 4545, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 54664545 in words is "fifty-four million, six hundred sixty-four thousand, five hundred forty-five".