53143375 has 8 divisors (see below), whose sum is σ = 66323088. Its totient is φ = 42514600.

The previous prime is 53143367. The next prime is 53143403. The reversal of 53143375 is 57334135.

It is not a de Polignac number, because 53143375 - 2³ = 53143367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212449 + ... + 212698.

It is an arithmetic number, because the mean of its divisors is an integer number (8290386).

Almost surely, 2^53143375 is an apocalyptic number.

53143375 is a deficient number, since it is larger than the sum of its proper divisors (13179713).

53143375 is an equidigital number, since it uses as much as digits as its factorization.

53143375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425162 (or 425152 counting only the distinct ones).

The product of its digits is 18900, while the sum is 31.

The square root of 53143375 is about 7289.9502741788. The cubic root of 53143375 is about 375.9669858406.

The spelling of 53143375 in words is "fifty-three million, one hundred forty-three thousand, three hundred seventy-five".