42550459 has 8 divisors (see below), whose sum is σ = 49295840. Its totient is φ = 35971776.

The previous prime is 42550451. The next prime is 42550493. The reversal of 42550459 is 95405524.

It is a happy number.

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 42550459 - 2³ = 42550451 is a prime.

It is a super-2 number, since 2×42550459² = 3621083122221362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42550451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41124 + ... + 42145.

It is an arithmetic number, because the mean of its divisors is an integer number (6161980).

Almost surely, 2^42550459 is an apocalyptic number.

42550459 is a deficient number, since it is larger than the sum of its proper divisors (6745381).

42550459 is an equidigital number, since it uses as much as digits as its factorization.

42550459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83349.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 42550459 is about 6523.0712858285. The cubic root of 42550459 is about 349.1146576088.

The spelling of 42550459 in words is "forty-two million, five hundred fifty thousand, four hundred fifty-nine".