53508945 has 64 divisors (see below), whose sum is σ = 107053056. Its totient is φ = 22256640.

The previous prime is 53508941. The next prime is 53508953. The reversal of 53508945 is 54980535.

53508945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53508945 - 2² = 53508941 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53508941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 54852 + ... + 55818.

It is an arithmetic number, because the mean of its divisors is an integer number (1672704).

Almost surely, 2^53508945 is an apocalyptic number.

It is an amenable number.

53508945 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

53508945 is a wasteful number, since it uses less digits than its factorization.

53508945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030.

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 53508945 is about 7314.9808612190. The cubic root of 53508945 is about 376.8271011899.

Subtracting from 53508945 its product of nonzero digits (108000), we obtain a triangular number (53400945 = T₁₀₃₃₄).

The spelling of 53508945 in words is "fifty-three million, five hundred eight thousand, nine hundred forty-five".