42437533 has 2 divisors, whose sum is σ = 42437534. Its totient is φ = 42437532.

The previous prime is 42437513. The next prime is 42437573. The reversal of 42437533 is 33573424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28164249 + 14273284 = 5307^2 + 3778^2 .

It is a cyclic number.

It is not a de Polignac number, because 42437533 - 2¹⁷ = 42306461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42437495 and 42437504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42437503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21218766 + 21218767.

It is an arithmetic number, because the mean of its divisors is an integer number (21218767).

Almost surely, 2^42437533 is an apocalyptic number.

It is an amenable number.

42437533 is a deficient number, since it is larger than the sum of its proper divisors (1).

42437533 is an equidigital number, since it uses as much as digits as its factorization.

42437533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 31.

The square root of 42437533 is about 6514.4096432447. The cubic root of 42437533 is about 348.8055418706.

The spelling of 42437533 in words is "forty-two million, four hundred thirty-seven thousand, five hundred thirty-three".