42553143 has 6 divisors (see below), whose sum is σ = 61465664. Its totient is φ = 28368756.

The previous prime is 42553127. The next prime is 42553153. The reversal of 42553143 is 34135524.

It is not a de Polignac number, because 42553143 - 2⁴ = 42553127 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 (42553153) 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, 2364055 + ... + 2364072.

Almost surely, 2^42553143 is an apocalyptic number.

42553143 is a deficient number, since it is larger than the sum of its proper divisors (18912521).

42553143 is a wasteful number, since it uses less digits than its factorization.

42553143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4728133 (or 4728130 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 42553143 is about 6523.2770138942. The cubic root of 42553143 is about 349.1219979452.

Adding to 42553143 its reverse (34135524), we get a palindrome (76688667).

The spelling of 42553143 in words is "forty-two million, five hundred fifty-three thousand, one hundred forty-three".