42533441 has 4 divisors (see below), whose sum is σ = 43570884. Its totient is φ = 41496000.

The previous prime is 42533429. The next prime is 42533467. The reversal of 42533441 is 14433524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2337841 + 40195600 = 1529^2 + 6340^2 .

It is a cyclic number.

It is not a de Polignac number, because 42533441 - 2¹⁰ = 42532417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42533441.

It is not an unprimeable number, because it can be changed into a prime (42533411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518660 + ... + 518741.

It is an arithmetic number, because the mean of its divisors is an integer number (10892721).

Almost surely, 2^42533441 is an apocalyptic number.

42533441 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

42533441 is a deficient number, since it is larger than the sum of its proper divisors (1037443).

42533441 is a wasteful number, since it uses less digits than its factorization.

42533441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037442.

The product of its digits is 5760, while the sum is 26.

The square root of 42533441 is about 6521.7667084924. The cubic root of 42533441 is about 349.0681087535.

Adding to 42533441 its reverse (14433524), we get a palindrome (56966965).

The spelling of 42533441 in words is "forty-two million, five hundred thirty-three thousand, four hundred forty-one".