42557267 has 4 divisors (see below), whose sum is σ = 42574896. Its totient is φ = 42539640.

The previous prime is 42557237. The next prime is 42557287. The reversal of 42557267 is 76275524.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42557267 - 2¹² = 42553171 is a prime.

It is a super-2 number, since 2×42557267² = 3622241949018578, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42557267.

It is not an unprimeable number, because it can be changed into a prime (42557237) 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, 4484 + ... + 10257.

It is an arithmetic number, because the mean of its divisors is an integer number (10643724).

Almost surely, 2^42557267 is an apocalyptic number.

42557267 is a deficient number, since it is larger than the sum of its proper divisors (17629).

42557267 is a wasteful number, since it uses less digits than its factorization.

42557267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17628.

The product of its digits is 117600, while the sum is 38.

The square root of 42557267 is about 6523.5931050304. The cubic root of 42557267 is about 349.1332758635.

It can be divided in two parts, 42557 and 267, that added together give a palindrome (42824).

The spelling of 42557267 in words is "forty-two million, five hundred fifty-seven thousand, two hundred sixty-seven".