42511061 has 8 divisors (see below), whose sum is σ = 44596224. Its totient is φ = 40445680.

The previous prime is 42511043. The next prime is 42511069. The reversal of 42511061 is 16011524.

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 42511061 - 2¹⁰ = 42510037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42511069) 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, 446 + ... + 9231.

It is an arithmetic number, because the mean of its divisors is an integer number (5574528).

Almost surely, 2^42511061 is an apocalyptic number.

It is an amenable number.

42511061 is a deficient number, since it is larger than the sum of its proper divisors (2085163).

42511061 is a wasteful number, since it uses less digits than its factorization.

42511061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9891.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 42511061 is about 6520.0506899870. The cubic root of 42511061 is about 349.0068744661.

Adding to 42511061 its reverse (16011524), we get a palindrome (58522585).

The spelling of 42511061 in words is "forty-two million, five hundred eleven thousand, sixty-one".