42365501 has 2 divisors, whose sum is σ = 42365502. Its totient is φ = 42365500.

The previous prime is 42365483. The next prime is 42365503. The reversal of 42365501 is 10556324.

42365501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29441476 + 12924025 = 5426^2 + 3595^2 .

It is a cyclic number.

It is not a de Polignac number, because 42365501 - 2¹⁸ = 42103357 is a prime.

Together with 42365503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42365503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21182750 + 21182751.

It is an arithmetic number, because the mean of its divisors is an integer number (21182751).

Almost surely, 2^42365501 is an apocalyptic number.

It is an amenable number.

42365501 is a deficient number, since it is larger than the sum of its proper divisors (1).

42365501 is an equidigital number, since it uses as much as digits as its factorization.

42365501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 42365501 is about 6508.8786284582. The cubic root of 42365501 is about 348.6080799545.

The spelling of 42365501 in words is "forty-two million, three hundred sixty-five thousand, five hundred one".