42143550 has 24 divisors (see below), whose sum is σ = 104516376. Its totient is φ = 11238240.

The previous prime is 42143513. The next prime is 42143573. The reversal of 42143550 is 5534124.

42143550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42143550.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140329 + ... + 140628.

It is an arithmetic number, because the mean of its divisors is an integer number (4354849).

Almost surely, 2^42143550 is an apocalyptic number.

42143550 is an abundant number, since it is smaller than the sum of its proper divisors (62372826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42143550 is a wasteful number, since it uses less digits than its factorization.

42143550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280972 (or 280967 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 42143550 is about 6491.8063741920. The cubic root of 42143550 is about 347.9982329148.

Adding to 42143550 its reverse (5534124), we get a palindrome (47677674).

The spelling of 42143550 in words is "forty-two million, one hundred forty-three thousand, five hundred fifty".