42371533 has 2 divisors, whose sum is σ = 42371534. Its totient is φ = 42371532.

The previous prime is 42371507. The next prime is 42371551. The reversal of 42371533 is 33517324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30448324 + 11923209 = 5518^2 + 3453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42371533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42171533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21185766 + 21185767.

It is an arithmetic number, because the mean of its divisors is an integer number (21185767).

Almost surely, 2^42371533 is an apocalyptic number.

It is an amenable number.

42371533 is a deficient number, since it is larger than the sum of its proper divisors (1).

42371533 is an equidigital number, since it uses as much as digits as its factorization.

42371533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 28.

The square root of 42371533 is about 6509.3419790329. The cubic root of 42371533 is about 348.6246241087.

Adding to 42371533 its reverse (33517324), we get a palindrome (75888857).

The spelling of 42371533 in words is "forty-two million, three hundred seventy-one thousand, five hundred thirty-three".