42566245 has 8 divisors (see below), whose sum is σ = 51121440. Its totient is φ = 34025040.

The previous prime is 42566231. The next prime is 42566257. The reversal of 42566245 is 54266524.

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

It is a de Polignac number, because none of the positive numbers 2^k-42566245 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42566245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5146 + ... + 10564.

It is an arithmetic number, because the mean of its divisors is an integer number (6390180).

Almost surely, 2^42566245 is an apocalyptic number.

It is an amenable number.

42566245 is a deficient number, since it is larger than the sum of its proper divisors (8555195).

42566245 is a wasteful number, since it uses less digits than its factorization.

42566245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6995.

The product of its digits is 57600, while the sum is 34.

The square root of 42566245 is about 6524.2811864603. The cubic root of 42566245 is about 349.1578255145.

It can be divided in two parts, 4256 and 6245, that added together give a palindrome (10501).

The spelling of 42566245 in words is "forty-two million, five hundred sixty-six thousand, two hundred forty-five".