42505359 has 16 divisors (see below), whose sum is σ = 61404000. Its totient is φ = 26153088.

The previous prime is 42505327. The next prime is 42505363. The reversal of 42505359 is 95350524.

It is not a de Polignac number, because 42505359 - 2⁵ = 42505327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42505369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3367 + ... + 9815.

It is an arithmetic number, because the mean of its divisors is an integer number (3837750).

Almost surely, 2^42505359 is an apocalyptic number.

42505359 is a deficient number, since it is larger than the sum of its proper divisors (18898641).

42505359 is an equidigital number, since it uses as much as digits as its factorization.

42505359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6491 (or 6465 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 42505359 is about 6519.6134087843. The cubic root of 42505359 is about 348.9912696946.

The spelling of 42505359 in words is "forty-two million, five hundred five thousand, three hundred fifty-nine".