42566475 has 48 divisors (see below), whose sum is σ = 81423360. Its totient is φ = 19219200.

The previous prime is 42566449. The next prime is 42566509. The reversal of 42566475 is 57466524.

It is not a de Polignac number, because 42566475 - 2⁶ = 42566411 is a prime.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 46270 + ... + 47180.

It is an arithmetic number, because the mean of its divisors is an integer number (1696320).

Almost surely, 2^42566475 is an apocalyptic number.

42566475 is a deficient number, since it is larger than the sum of its proper divisors (38856885).

42566475 is a wasteful number, since it uses less digits than its factorization.

42566475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020 (or 1015 counting only the distinct ones).

The product of its digits is 201600, while the sum is 39.

The square root of 42566475 is about 6524.2988128994. The cubic root of 42566475 is about 349.1584543864.

It can be divided in two parts, 4256 and 6475, that added together give a triangular number (10731 = T₁₄₆).

The spelling of 42566475 in words is "forty-two million, five hundred sixty-six thousand, four hundred seventy-five".