42767563 has 4 divisors (see below), whose sum is σ = 45283320. Its totient is φ = 40251808.

The previous prime is 42767521. The next prime is 42767581. The reversal of 42767563 is 36576724.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42767563 - 2¹³ = 42759371 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42747563) 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, 1257853 + ... + 1257886.

It is an arithmetic number, because the mean of its divisors is an integer number (11320830).

Almost surely, 2^42767563 is an apocalyptic number.

42767563 is a deficient number, since it is larger than the sum of its proper divisors (2515757).

42767563 is a wasteful number, since it uses less digits than its factorization.

42767563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515756.

The product of its digits is 211680, while the sum is 40.

The square root of 42767563 is about 6539.6913535732. The cubic root of 42767563 is about 349.7074098929.

The spelling of 42767563 in words is "forty-two million, seven hundred sixty-seven thousand, five hundred sixty-three".