53143775 has 6 divisors (see below), whose sum is σ = 65898312. Its totient is φ = 42515000.

The previous prime is 53143771. The next prime is 53143841. The reversal of 53143775 is 57734135.

It is not a de Polignac number, because 53143775 - 2² = 53143771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53143771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1062851 + ... + 1062900.

It is an arithmetic number, because the mean of its divisors is an integer number (10983052).

Almost surely, 2^53143775 is an apocalyptic number.

53143775 is a deficient number, since it is larger than the sum of its proper divisors (12754537).

53143775 is a wasteful number, since it uses less digits than its factorization.

53143775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125761 (or 2125756 counting only the distinct ones).

The product of its digits is 44100, while the sum is 35.

The square root of 53143775 is about 7289.9777091566. The cubic root of 53143775 is about 375.9679291154.

The spelling of 53143775 in words is "fifty-three million, one hundred forty-three thousand, seven hundred seventy-five".