42425471 has 4 divisors (see below), whose sum is σ = 46282344. Its totient is φ = 38568600.

The previous prime is 42425459. The next prime is 42425491. The reversal of 42425471 is 17452424.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42425471 is a prime.

It is a super-3 number, since 3×42425471³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42425491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1928420 + ... + 1928441.

It is an arithmetic number, because the mean of its divisors is an integer number (11570586).

Almost surely, 2^42425471 is an apocalyptic number.

42425471 is a deficient number, since it is larger than the sum of its proper divisors (3856873).

42425471 is a wasteful number, since it uses less digits than its factorization.

42425471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3856872.

The product of its digits is 8960, while the sum is 29.

The square root of 42425471 is about 6513.4837836599. The cubic root of 42425471 is about 348.7724917942.

Adding to 42425471 its reverse (17452424), we get a palindrome (59877895).

The spelling of 42425471 in words is "forty-two million, four hundred twenty-five thousand, four hundred seventy-one".