42325861 has 2 divisors, whose sum is σ = 42325862. Its totient is φ = 42325860.

The previous prime is 42325849. The next prime is 42325919. The reversal of 42325861 is 16852324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23097636 + 19228225 = 4806^2 + 4385^2 .

It is a cyclic number.

It is not a de Polignac number, because 42325861 - 2²¹ = 40228709 is a prime.

It is equal to p_2566273 and since 42325861 and 2566273 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42325831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21162930 + 21162931.

It is an arithmetic number, because the mean of its divisors is an integer number (21162931).

Almost surely, 2^42325861 is an apocalyptic number.

It is an amenable number.

42325861 is a deficient number, since it is larger than the sum of its proper divisors (1).

42325861 is an equidigital number, since it uses as much as digits as its factorization.

42325861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 31.

The square root of 42325861 is about 6505.8328444558. The cubic root of 42325861 is about 348.4993190040.

The spelling of 42325861 in words is "forty-two million, three hundred twenty-five thousand, eight hundred sixty-one".