42505475 has 6 divisors (see below), whose sum is σ = 52706820. Its totient is φ = 34004360.

The previous prime is 42505469. The next prime is 42505501. The reversal of 42505475 is 57450524.

It is not a de Polignac number, because 42505475 - 2¹⁴ = 42489091 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 850085 + ... + 850134.

It is an arithmetic number, because the mean of its divisors is an integer number (8784470).

Almost surely, 2^42505475 is an apocalyptic number.

42505475 is a deficient number, since it is larger than the sum of its proper divisors (10201345).

42505475 is a wasteful number, since it uses less digits than its factorization.

42505475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700229 (or 1700224 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 32.

The square root of 42505475 is about 6519.6223050112. The cubic root of 42505475 is about 348.9915871679.

Adding to 42505475 its reverse (57450524), we get a palindrome (99955999).

The spelling of 42505475 in words is "forty-two million, five hundred five thousand, four hundred seventy-five".