42630563 has 4 divisors (see below), whose sum is σ = 42644088. Its totient is φ = 42617040.

The previous prime is 42630527. The next prime is 42630571. The reversal of 42630563 is 36503624.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42630563 - 2⁶ = 42630499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42630503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 743 + ... + 9263.

It is an arithmetic number, because the mean of its divisors is an integer number (10661022).

Almost surely, 2^42630563 is an apocalyptic number.

42630563 is a deficient number, since it is larger than the sum of its proper divisors (13525).

42630563 is an equidigital number, since it uses as much as digits as its factorization.

42630563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13524.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 42630563 is about 6529.2084512596. The cubic root of 42630563 is about 349.3335972754. Note that the first 3 decimals are identical.

The spelling of 42630563 in words is "forty-two million, six hundred thirty thousand, five hundred sixty-three".