42801533 has 2 divisors, whose sum is σ = 42801534. Its totient is φ = 42801532.

The previous prime is 42801527. The next prime is 42801553. The reversal of 42801533 is 33510824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42549529 + 252004 = 6523^2 + 502^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42801533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42801553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21400766 + 21400767.

It is an arithmetic number, because the mean of its divisors is an integer number (21400767).

Almost surely, 2^42801533 is an apocalyptic number.

It is an amenable number.

42801533 is a deficient number, since it is larger than the sum of its proper divisors (1).

42801533 is an equidigital number, since it uses as much as digits as its factorization.

42801533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 42801533 is about 6542.2880554130. The cubic root of 42801533 is about 349.7999755040.

It can be divided in two parts, 42801 and 533, that added together give a palindrome (43334).

The spelling of 42801533 in words is "forty-two million, eight hundred one thousand, five hundred thirty-three".