42253663 has 8 divisors (see below), whose sum is σ = 45207920. Its totient is φ = 39372480.

The previous prime is 42253633. The next prime is 42253669. The reversal of 42253663 is 36635224.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42253663 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 (42253669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17070 + ... + 19387.

It is an arithmetic number, because the mean of its divisors is an integer number (5650990).

Almost surely, 2^42253663 is an apocalyptic number.

42253663 is a deficient number, since it is larger than the sum of its proper divisors (2954257).

42253663 is a wasteful number, since it uses less digits than its factorization.

42253663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36537.

The product of its digits is 25920, while the sum is 31.

The square root of 42253663 is about 6500.2817631238. The cubic root of 42253663 is about 348.3010535067.

Adding to 42253663 its reverse (36635224), we get a palindrome (78888887).

The spelling of 42253663 in words is "forty-two million, two hundred fifty-three thousand, six hundred sixty-three".