42550867 has 4 divisors (see below), whose sum is σ = 42608880. Its totient is φ = 42492856.

The previous prime is 42550831. The next prime is 42550877. The reversal of 42550867 is 76805524.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42550867 - 2²³ = 34162259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42550877) 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 3 ways as a sum of consecutive naturals, for example, 27892 + ... + 29377.

It is an arithmetic number, because the mean of its divisors is an integer number (10652220).

Almost surely, 2^42550867 is an apocalyptic number.

42550867 is a deficient number, since it is larger than the sum of its proper divisors (58013).

42550867 is an equidigital number, since it uses as much as digits as its factorization.

42550867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58012.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 42550867 is about 6523.1025593654. The cubic root of 42550867 is about 349.1157734474.

The spelling of 42550867 in words is "forty-two million, five hundred fifty thousand, eight hundred sixty-seven".