42564495 has 8 divisors (see below), whose sum is σ = 68103216. Its totient is φ = 22701056.

The previous prime is 42564479. The next prime is 42564521. The reversal of 42564495 is 59446524.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42564495 - 2⁴ = 42564479 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1418802 + ... + 1418831.

It is an arithmetic number, because the mean of its divisors is an integer number (8512902).

Almost surely, 2^42564495 is an apocalyptic number.

42564495 is a deficient number, since it is larger than the sum of its proper divisors (25538721).

42564495 is a wasteful number, since it uses less digits than its factorization.

42564495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837641.

The product of its digits is 172800, while the sum is 39.

The square root of 42564495 is about 6524.1470706905. The cubic root of 42564495 is about 349.1530405448.

The spelling of 42564495 in words is "forty-two million, five hundred sixty-four thousand, four hundred ninety-five".