3526561 has 4 divisors (see below), whose sum is σ = 3537072. Its totient is φ = 3516052.

The previous prime is 3526541. The next prime is 3526573. The reversal of 3526561 is 1656253.

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.

It is a cyclic number.

It is not a de Polignac number, because 3526561 - 2⁹ = 3526049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3526511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4735 + ... + 5428.

It is an arithmetic number, because the mean of its divisors is an integer number (884268).

Almost surely, 2^3526561 is an apocalyptic number.

It is an amenable number.

3526561 is a deficient number, since it is larger than the sum of its proper divisors (10511).

3526561 is a wasteful number, since it uses less digits than its factorization.

3526561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10510.

The product of its digits is 5400, while the sum is 28.

The square root of 3526561 is about 1877.9140022908. The cubic root of 3526561 is about 152.2125517820.

The spelling of 3526561 in words is "three million, five hundred twenty-six thousand, five hundred sixty-one".