42587653 has 2 divisors, whose sum is σ = 42587654. Its totient is φ = 42587652.

The previous prime is 42587639. The next prime is 42587659. The reversal of 42587653 is 35678524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23639044 + 18948609 = 4862^2 + 4353^2 .

It is a cyclic number.

It is not a de Polignac number, because 42587653 - 2⁹ = 42587141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42587659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21293826 + 21293827.

It is an arithmetic number, because the mean of its divisors is an integer number (21293827).

Almost surely, 2^42587653 is an apocalyptic number.

It is an amenable number.

42587653 is a deficient number, since it is larger than the sum of its proper divisors (1).

42587653 is an equidigital number, since it uses as much as digits as its factorization.

42587653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 40.

The square root of 42587653 is about 6525.9216207368. The cubic root of 42587653 is about 349.2163501191.

It can be divided in two parts, 4258 and 7653, that added together give a palindrome (11911).

The spelling of 42587653 in words is "forty-two million, five hundred eighty-seven thousand, six hundred fifty-three".