42537567 has 4 divisors (see below), whose sum is σ = 56716760. Its totient is φ = 28358376.

The previous prime is 42537503. The next prime is 42537581. The reversal of 42537567 is 76573524.

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

It is not a de Polignac number, because 42537567 - 2⁶ = 42537503 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 (42537367) 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, 7089592 + ... + 7089597.

It is an arithmetic number, because the mean of its divisors is an integer number (14179190).

Almost surely, 2^42537567 is an apocalyptic number.

42537567 is a deficient number, since it is larger than the sum of its proper divisors (14179193).

42537567 is a wasteful number, since it uses less digits than its factorization.

42537567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14179192.

The product of its digits is 176400, while the sum is 39.

The square root of 42537567 is about 6522.0830261505. The cubic root of 42537567 is about 349.0793956250.

The spelling of 42537567 in words is "forty-two million, five hundred thirty-seven thousand, five hundred sixty-seven".