42642053 has 4 divisors (see below), whose sum is σ = 42672000. Its totient is φ = 42612108.

The previous prime is 42642013. The next prime is 42642107. The reversal of 42642053 is 35024624.

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 42642053 - 2¹⁴ = 42625669 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 (42642013) 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 in 3 ways as a sum of consecutive naturals, for example, 12725 + ... + 15722.

It is an arithmetic number, because the mean of its divisors is an integer number (10668000).

Almost surely, 2^42642053 is an apocalyptic number.

It is an amenable number.

42642053 is a deficient number, since it is larger than the sum of its proper divisors (29947).

42642053 is a wasteful number, since it uses less digits than its factorization.

42642053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29946.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 42642053 is about 6530.0882842424. The cubic root of 42642053 is about 349.3649791620.

Adding to 42642053 its reverse (35024624), we get a palindrome (77666677).

The spelling of 42642053 in words is "forty-two million, six hundred forty-two thousand, fifty-three".