42517045 has 8 divisors (see below), whose sum is σ = 52779960. Its totient is φ = 32840640.

The previous prime is 42517043. The next prime is 42517049. The reversal of 42517045 is 54071524.

It can be written as a sum of positive squares in 4 ways, for example, as 10504081 + 32012964 = 3241^2 + 5658^2 .

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

It is not a de Polignac number, because 42517045 - 2¹ = 42517043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42517043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146466 + ... + 146755.

It is an arithmetic number, because the mean of its divisors is an integer number (6597495).

Almost surely, 2^42517045 is an apocalyptic number.

It is an amenable number.

42517045 is a deficient number, since it is larger than the sum of its proper divisors (10262915).

42517045 is a wasteful number, since it uses less digits than its factorization.

42517045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293255.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 42517045 is about 6520.5095659772. The cubic root of 42517045 is about 349.0232494918.

Adding to 42517045 its reverse (54071524), we get a palindrome (96588569).

The spelling of 42517045 in words is "forty-two million, five hundred seventeen thousand, forty-five".