40537529 has 2 divisors, whose sum is σ = 40537530. Its totient is φ = 40537528.

The previous prime is 40537501. The next prime is 40537559. The reversal of 40537529 is 92573504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27541504 + 12996025 = 5248^2 + 3605^2 .

It is a cyclic number.

It is not a de Polignac number, because 40537529 - 2¹² = 40533433 is a prime.

It is a Chen prime.

It is equal to p_2464397 and since 40537529 and 2464397 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (40537559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20268764 + 20268765.

It is an arithmetic number, because the mean of its divisors is an integer number (20268765).

Almost surely, 2^40537529 is an apocalyptic number.

It is an amenable number.

40537529 is a deficient number, since it is larger than the sum of its proper divisors (1).

40537529 is an equidigital number, since it uses as much as digits as its factorization.

40537529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 40537529 is about 6366.9089046412. The cubic root of 40537529 is about 343.5203140453.

The spelling of 40537529 in words is "forty million, five hundred thirty-seven thousand, five hundred twenty-nine".