42529547 has 2 divisors, whose sum is σ = 42529548. Its totient is φ = 42529546.

The previous prime is 42529541. The next prime is 42529559. The reversal of 42529547 is 74592524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42529547 - 2⁶ = 42529483 is a prime.

It is a Chen prime.

It is equal to p_2577881 and since 42529547 and 2577881 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42529547.

It is not a weakly prime, because it can be changed into another prime (42529541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21264773 + 21264774.

It is an arithmetic number, because the mean of its divisors is an integer number (21264774).

Almost surely, 2^42529547 is an apocalyptic number.

42529547 is a deficient number, since it is larger than the sum of its proper divisors (1).

42529547 is an equidigital number, since it uses as much as digits as its factorization.

42529547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 38.

The square root of 42529547 is about 6521.4681629216. The cubic root of 42529547 is about 349.0574558596.

The spelling of 42529547 in words is "forty-two million, five hundred twenty-nine thousand, five hundred forty-seven".