42217513 has 8 divisors (see below), whose sum is σ = 45683456. Its totient is φ = 38782800.

The previous prime is 42217507. The next prime is 42217519. The reversal of 42217513 is 31571224.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42217507) and next prime (42217519).

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

It is a cyclic number.

It is not a de Polignac number, because 42217513 - 2²¹ = 40120361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42217519) 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, 4953 + ... + 10438.

It is an arithmetic number, because the mean of its divisors is an integer number (5710432).

Almost surely, 2^42217513 is an apocalyptic number.

It is an amenable number.

42217513 is a deficient number, since it is larger than the sum of its proper divisors (3465943).

42217513 is a wasteful number, since it uses less digits than its factorization.

42217513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15615.

The product of its digits is 1680, while the sum is 25.

The square root of 42217513 is about 6497.5005194305. The cubic root of 42217513 is about 348.2016958444.

Adding to 42217513 its reverse (31571224), we get a palindrome (73788737).

The spelling of 42217513 in words is "forty-two million, two hundred seventeen thousand, five hundred thirteen".