42250609 has 8 divisors (see below), whose sum is σ = 44710272. Its totient is φ = 39842880.

The previous prime is 42250601. The next prime is 42250619. The reversal of 42250609 is 90605224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42250609 - 2³ = 42250601 is a prime.

It is a super-2 number, since 2×42250609² = 3570227921741762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42250601) 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 7 ways as a sum of consecutive naturals, for example, 11304 + ... + 14569.

It is an arithmetic number, because the mean of its divisors is an integer number (5588784).

Almost surely, 2^42250609 is an apocalyptic number.

It is an amenable number.

42250609 is a deficient number, since it is larger than the sum of its proper divisors (2459663).

42250609 is a wasteful number, since it uses less digits than its factorization.

42250609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25967.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 42250609 is about 6500.0468459850. The cubic root of 42250609 is about 348.2926618315.

The spelling of 42250609 in words is "forty-two million, two hundred fifty thousand, six hundred nine".