53143545 has 32 divisors (see below), whose sum is σ = 104654592. Its totient is φ = 22424832.

The previous prime is 53143543. The next prime is 53143553. The reversal of 53143545 is 54534135.

It is not a de Polignac number, because 53143545 - 2¹ = 53143543 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53143543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18102 + ... + 20831.

It is an arithmetic number, because the mean of its divisors is an integer number (3270456).

Almost surely, 2^53143545 is an apocalyptic number.

It is an amenable number.

53143545 is a deficient number, since it is larger than the sum of its proper divisors (51511047).

53143545 is a wasteful number, since it uses less digits than its factorization.

53143545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38961.

The product of its digits is 18000, while the sum is 30.

The square root of 53143545 is about 7289.9619340570. The cubic root of 53143545 is about 375.9673867329.

The spelling of 53143545 in words is "fifty-three million, one hundred forty-three thousand, five hundred forty-five".