42053533 has 2 divisors, whose sum is σ = 42053534. Its totient is φ = 42053532.

The previous prime is 42053521. The next prime is 42053551. The reversal of 42053533 is 33535024.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38601369 + 3452164 = 6213^2 + 1858^2 .

It is a cyclic number.

It is not a de Polignac number, because 42053533 - 2²¹ = 39956381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42053498 and 42053507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42053503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21026766 + 21026767.

It is an arithmetic number, because the mean of its divisors is an integer number (21026767).

Almost surely, 2^42053533 is an apocalyptic number.

It is an amenable number.

42053533 is a deficient number, since it is larger than the sum of its proper divisors (1).

42053533 is an equidigital number, since it uses as much as digits as its factorization.

42053533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 42053533 is about 6484.8695437919. The cubic root of 42053533 is about 347.7502860208.

Adding to 42053533 its reverse (33535024), we get a palindrome (75588557).

The spelling of 42053533 in words is "forty-two million, fifty-three thousand, five hundred thirty-three".