42506611 has 8 divisors (see below), whose sum is σ = 50146304. Its totient is φ = 35258760.

The previous prime is 42506587. The next prime is 42506623. The reversal of 42506611 is 11660524.

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 42506611 - 2¹¹ = 42504563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42506671) 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, 97725 + ... + 98158.

It is an arithmetic number, because the mean of its divisors is an integer number (6268288).

Almost surely, 2^42506611 is an apocalyptic number.

42506611 is a deficient number, since it is larger than the sum of its proper divisors (7639693).

42506611 is a wasteful number, since it uses less digits than its factorization.

42506611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195921.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 42506611 is about 6519.7094260404. The cubic root of 42506611 is about 348.9946961863.

The spelling of 42506611 in words is "forty-two million, five hundred six thousand, six hundred eleven".