42636653 has 4 divisors (see below), whose sum is σ = 42703200. Its totient is φ = 42570108.

The previous prime is 42636637. The next prime is 42636667. The reversal of 42636653 is 35663624.

42636653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42636653 - 2⁴ = 42636637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42636613) 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 in 3 ways as a sum of consecutive naturals, for example, 32303 + ... + 33596.

It is an arithmetic number, because the mean of its divisors is an integer number (10675800).

Almost surely, 2^42636653 is an apocalyptic number.

It is an amenable number.

42636653 is a deficient number, since it is larger than the sum of its proper divisors (66547).

42636653 is an equidigital number, since it uses as much as digits as its factorization.

42636653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66546.

The product of its digits is 77760, while the sum is 35.

The square root of 42636653 is about 6529.6748004782. The cubic root of 42636653 is about 349.3502311969.

The spelling of 42636653 in words is "forty-two million, six hundred thirty-six thousand, six hundred fifty-three".