42025663 has 8 divisors (see below), whose sum is σ = 45267200. Its totient is φ = 38887128.

The previous prime is 42025657. The next prime is 42025699. The reversal of 42025663 is 36652024.

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 not a de Polignac number, because 42025663 - 2⁵ = 42025631 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42125663) 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, 24903 + ... + 26536.

It is an arithmetic number, because the mean of its divisors is an integer number (5658400).

Almost surely, 2^42025663 is an apocalyptic number.

42025663 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

42025663 is a deficient number, since it is larger than the sum of its proper divisors (3241537).

42025663 is a wasteful number, since it uses less digits than its factorization.

42025663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51501.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 42025663 is about 6482.7203394871. The cubic root of 42025663 is about 347.6734479086.

Adding to 42025663 its reverse (36652024), we get a palindrome (78677687).

The spelling of 42025663 in words is "forty-two million, twenty-five thousand, six hundred sixty-three".