53243445 has 16 divisors (see below), whose sum is σ = 85622400. Its totient is φ = 28252224.

The previous prime is 53243401. The next prime is 53243471. The reversal of 53243445 is 54434235.

It is not a de Polignac number, because 53243445 - 2⁶ = 53243381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5934 + ... + 11903.

It is an arithmetic number, because the mean of its divisors is an integer number (5351400).

Almost surely, 2^53243445 is an apocalyptic number.

It is an amenable number.

53243445 is a deficient number, since it is larger than the sum of its proper divisors (32378955).

53243445 is a wasteful number, since it uses less digits than its factorization.

53243445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18044.

The product of its digits is 28800, while the sum is 30.

The square root of 53243445 is about 7296.8106046409. The cubic root of 53243445 is about 376.2028222359.

The spelling of 53243445 in words is "fifty-three million, two hundred forty-three thousand, four hundred forty-five".