42250047 has 8 divisors (see below), whose sum is σ = 64381056. Its totient is φ = 24142872.

The previous prime is 42250031. The next prime is 42250051. The reversal of 42250047 is 74005224.

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

It is not a de Polignac number, because 42250047 - 2⁴ = 42250031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42249999 and 42250026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42250067) 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, 1005933 + ... + 1005974.

It is an arithmetic number, because the mean of its divisors is an integer number (8047632).

Almost surely, 2^42250047 is an apocalyptic number.

42250047 is a deficient number, since it is larger than the sum of its proper divisors (22131009).

42250047 is a wasteful number, since it uses less digits than its factorization.

42250047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011917.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 42250047 is about 6500.0036153836. The cubic root of 42250047 is about 348.2911175434.

The spelling of 42250047 in words is "forty-two million, two hundred fifty thousand, forty-seven".