42563530 has 16 divisors (see below), whose sum is σ = 77332320. Its totient is φ = 16865872.

The previous prime is 42563509. The next prime is 42563539. The reversal of 42563530 is 3536524.

It is not an unprimeable number, because it can be changed into a prime (42563539) 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, 18820 + ... + 20959.

It is an arithmetic number, because the mean of its divisors is an integer number (4833270).

Almost surely, 2^42563530 is an apocalyptic number.

42563530 is a deficient number, since it is larger than the sum of its proper divisors (34768790).

42563530 is a wasteful number, since it uses less digits than its factorization.

42563530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39893.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 42563530 is about 6524.0731142439. The cubic root of 42563530 is about 349.1504019198.

The spelling of 42563530 in words is "forty-two million, five hundred sixty-three thousand, five hundred thirty".