42628563 has 6 divisors (see below), whose sum is σ = 61574604. Its totient is φ = 28419036.

The previous prime is 42628559. The next prime is 42628567. The reversal of 42628563 is 36582624.

It is an interprime number because it is at equal distance from previous prime (42628559) and next prime (42628567).

It is not a de Polignac number, because 42628563 - 2² = 42628559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42628567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2368245 + ... + 2368262.

It is an arithmetic number, because the mean of its divisors is an integer number (10262434).

Almost surely, 2^42628563 is an apocalyptic number.

42628563 is a deficient number, since it is larger than the sum of its proper divisors (18946041).

42628563 is a wasteful number, since it uses less digits than its factorization.

42628563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4736513 (or 4736510 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 42628563 is about 6529.0552915410. The cubic root of 42628563 is about 349.3281342299.

The spelling of 42628563 in words is "forty-two million, six hundred twenty-eight thousand, five hundred sixty-three".