42576591 has 4 divisors (see below), whose sum is σ = 56768792. Its totient is φ = 28384392.

The previous prime is 42576581. The next prime is 42576613. The reversal of 42576591 is 19567524.

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

It is not a de Polignac number, because 42576591 - 2⁷ = 42576463 is a prime.

It is a super-2 number, since 2×42576591² = 3625532202362562, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42576571) 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, 7096096 + ... + 7096101.

It is an arithmetic number, because the mean of its divisors is an integer number (14192198).

Almost surely, 2^42576591 is an apocalyptic number.

42576591 is a deficient number, since it is larger than the sum of its proper divisors (14192201).

42576591 is a wasteful number, since it uses less digits than its factorization.

42576591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14192200.

The product of its digits is 75600, while the sum is 39.

The square root of 42576591 is about 6525.0740225686. The cubic root of 42576591 is about 349.1861115756.

The spelling of 42576591 in words is "forty-two million, five hundred seventy-six thousand, five hundred ninety-one".