42395545 has 4 divisors (see below), whose sum is σ = 50874660. Its totient is φ = 33916432.

The previous prime is 42395533. The next prime is 42395567. The reversal of 42395545 is 54559324.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18766224 + 23629321 = 4332^2 + 4861^2 .

It is a cyclic number.

It is not a de Polignac number, because 42395545 - 2⁵ = 42395513 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4239550 + ... + 4239559.

It is an arithmetic number, because the mean of its divisors is an integer number (12718665).

Almost surely, 2^42395545 is an apocalyptic number.

It is an amenable number.

42395545 is a deficient number, since it is larger than the sum of its proper divisors (8479115).

42395545 is an equidigital number, since it uses as much as digits as its factorization.

42395545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8479114.

The product of its digits is 108000, while the sum is 37.

The square root of 42395545 is about 6511.1861438604. The cubic root of 42395545 is about 348.6904670073.

The spelling of 42395545 in words is "forty-two million, three hundred ninety-five thousand, five hundred forty-five".