42534511 has 4 divisors (see below), whose sum is σ = 43906624. Its totient is φ = 41162400.

The previous prime is 42534491. The next prime is 42534529. The reversal of 42534511 is 11543524.

It is a happy number.

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 42534511 - 2⁹ = 42533999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42534581) 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, 686010 + ... + 686071.

It is an arithmetic number, because the mean of its divisors is an integer number (10976656).

Almost surely, 2^42534511 is an apocalyptic number.

42534511 is a deficient number, since it is larger than the sum of its proper divisors (1372113).

42534511 is a wasteful number, since it uses less digits than its factorization.

42534511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372112.

The product of its digits is 2400, while the sum is 25.

The square root of 42534511 is about 6521.8487409629. The cubic root of 42534511 is about 349.0710358601.

The spelling of 42534511 in words is "forty-two million, five hundred thirty-four thousand, five hundred eleven".