42000653 has 2 divisors, whose sum is σ = 42000654. Its totient is φ = 42000652.

The previous prime is 42000649. The next prime is 42000683. The reversal of 42000653 is 35600024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28590409 + 13410244 = 5347^2 + 3662^2 .

It is a cyclic number.

It is not a de Polignac number, because 42000653 - 2² = 42000649 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42000683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21000326 + 21000327.

It is an arithmetic number, because the mean of its divisors is an integer number (21000327).

Almost surely, 2^42000653 is an apocalyptic number.

It is an amenable number.

42000653 is a deficient number, since it is larger than the sum of its proper divisors (1).

42000653 is an equidigital number, since it uses as much as digits as its factorization.

42000653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 42000653 is about 6480.7910782558. The cubic root of 42000653 is about 347.6044659439.

Adding to 42000653 its reverse (35600024), we get a palindrome (77600677).

The spelling of 42000653 in words is "forty-two million, six hundred fifty-three", and thus it is an aban number.