42432553 has 8 divisors (see below), whose sum is σ = 43045128. Its totient is φ = 41823744.

The previous prime is 42432503. The next prime is 42432557. The reversal of 42432553 is 35523424.

It can be written as a sum of positive squares in 4 ways, for example, as 24088464 + 18344089 = 4908^2 + 4283^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42432553 - 2⁹ = 42432041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42432557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27675 + ... + 29167.

It is an arithmetic number, because the mean of its divisors is an integer number (5380641).

Almost surely, 2^42432553 is an apocalyptic number.

It is an amenable number.

42432553 is a deficient number, since it is larger than the sum of its proper divisors (612575).

42432553 is a wasteful number, since it uses less digits than its factorization.

42432553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883.

The product of its digits is 14400, while the sum is 28.

The square root of 42432553 is about 6514.0274024600. The cubic root of 42432553 is about 348.7918973486.

Adding to 42432553 its reverse (35523424), we get a palindrome (77955977).

The spelling of 42432553 in words is "forty-two million, four hundred thirty-two thousand, five hundred fifty-three".