3565501 has 4 divisors (see below), whose sum is σ = 3585600. Its totient is φ = 3545404.

The previous prime is 3565487. The next prime is 3565531. The reversal of 3565501 is 1055653.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1055653 = 73 ⋅14461.

It is a cyclic number.

It is not a de Polignac number, because 3565501 - 2¹⁵ = 3532733 is a prime.

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 (3565531) 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, 9781 + ... + 10138.

It is an arithmetic number, because the mean of its divisors is an integer number (896400).

Almost surely, 2^3565501 is an apocalyptic number.

It is an amenable number.

3565501 is a deficient number, since it is larger than the sum of its proper divisors (20099).

3565501 is a wasteful number, since it uses less digits than its factorization.

3565501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20098.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 3565501 is about 1888.2534257880. The cubic root of 3565501 is about 152.7707418419.

It can be divided in two parts, 35 and 65501, that added together give a 16-th power (65536 = 2¹⁶).

The spelling of 3565501 in words is "three million, five hundred sixty-five thousand, five hundred one".