42251473 has 8 divisors (see below), whose sum is σ = 46781280. Its totient is φ = 37836480.

The previous prime is 42251471. The next prime is 42251509. The reversal of 42251473 is 37415224.

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

It is not a de Polignac number, because 42251473 - 2¹ = 42251471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42251471) 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, 27928 + ... + 29401.

It is an arithmetic number, because the mean of its divisors is an integer number (5847660).

Almost surely, 2^42251473 is an apocalyptic number.

It is an amenable number.

42251473 is a deficient number, since it is larger than the sum of its proper divisors (4529807).

42251473 is a wasteful number, since it uses less digits than its factorization.

42251473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57407.

The product of its digits is 6720, while the sum is 28.

The square root of 42251473 is about 6500.1133067047. The cubic root of 42251473 is about 348.2950359418.

Adding to 42251473 its reverse (37415224), we get a palindrome (79666697).

It can be divided in two parts, 42251 and 473, that added together give a palindrome (42724).

The spelling of 42251473 in words is "forty-two million, two hundred fifty-one thousand, four hundred seventy-three".