42056563505061 has 48 divisors (see below), whose sum is σ = 65495141839296. Its totient is φ = 23934885617664.

The previous prime is 42056563505051. The next prime is 42056563505081. The reversal of 42056563505061 is 16050536565024.

It is not a de Polignac number, because 42056563505061 - 2¹⁴ = 42056563488677 is a prime.

It is a super-2 number, since 2×42056563505061² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42056563505061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42056563505041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 238561830 + ... + 238738056.

It is an arithmetic number, because the mean of its divisors is an integer number (1364482121652).

Almost surely, 2^{42056563505061} is an apocalyptic number.

It is an amenable number.

42056563505061 is a deficient number, since it is larger than the sum of its proper divisors (23438578334235).

42056563505061 is a wasteful number, since it uses less digits than its factorization.

42056563505061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182818 (or 182811 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 48.

The spelling of 42056563505061 in words is "forty-two trillion, fifty-six billion, five hundred sixty-three million, five hundred five thousand, sixty-one".