53445345 has 48 divisors (see below), whose sum is σ = 91590912. Its totient is φ = 26584320.

The previous prime is 53445313. The next prime is 53445349. The reversal of 53445345 is 54354435.

53445345 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 53445345 - 2⁵ = 53445313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53445349) 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 47 ways as a sum of consecutive naturals, for example, 1137112 + ... + 1137158.

It is an arithmetic number, because the mean of its divisors is an integer number (1908144).

Almost surely, 2^53445345 is an apocalyptic number.

It is an amenable number.

53445345 is a deficient number, since it is larger than the sum of its proper divisors (38145567).

53445345 is a wasteful number, since it uses less digits than its factorization.

53445345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 139 counting only the distinct ones).

The product of its digits is 72000, while the sum is 33.

The square root of 53445345 is about 7310.6323255926. The cubic root of 53445345 is about 376.6777448208.

The spelling of 53445345 in words is "fifty-three million, four hundred forty-five thousand, three hundred forty-five".