42506701 has 2 divisors, whose sum is σ = 42506702. Its totient is φ = 42506700.

The previous prime is 42506693. The next prime is 42506719. The reversal of 42506701 is 10760524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25704900 + 16801801 = 5070^2 + 4099^2 .

It is a cyclic number.

It is not a de Polignac number, because 42506701 - 2³ = 42506693 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42506731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21253350 + 21253351.

It is an arithmetic number, because the mean of its divisors is an integer number (21253351).

Almost surely, 2^42506701 is an apocalyptic number.

It is an amenable number.

42506701 is a deficient number, since it is larger than the sum of its proper divisors (1).

42506701 is an equidigital number, since it uses as much as digits as its factorization.

42506701 is an evil number, because the sum of its binary digits is even.

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

The square root of 42506701 is about 6519.7163281848. The cubic root of 42506701 is about 348.9949424970.

The spelling of 42506701 in words is "forty-two million, five hundred six thousand, seven hundred one".