42652081 has 2 divisors, whose sum is σ = 42652082. Its totient is φ = 42652080.

The previous prime is 42652079. The next prime is 42652111. The reversal of 42652081 is 18025624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35892081 + 6760000 = 5991^2 + 2600^2 .

It is a cyclic number.

It is not a de Polignac number, because 42652081 - 2¹ = 42652079 is a prime.

It is a super-2 number, since 2×42652081² = 3638400027261122, which contains 22 as substring.

Together with 42652079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42652381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21326040 + 21326041.

It is an arithmetic number, because the mean of its divisors is an integer number (21326041).

Almost surely, 2^42652081 is an apocalyptic number.

It is an amenable number.

42652081 is a deficient number, since it is larger than the sum of its proper divisors (1).

42652081 is an equidigital number, since it uses as much as digits as its factorization.

42652081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 42652081 is about 6530.8560694598. The cubic root of 42652081 is about 349.3923633768.

The spelling of 42652081 in words is "forty-two million, six hundred fifty-two thousand, eighty-one".