3505531 has 2 divisors, whose sum is σ = 3505532. Its totient is φ = 3505530.

The previous prime is 3505529. The next prime is 3505543. The reversal of 3505531 is 1355053.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3505531 - 2¹ = 3505529 is a prime.

It is a super-2 number, since 2×3505531² = 24577495183922, which contains 22 as substring.

Together with 3505529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3505501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1752765 + 1752766.

It is an arithmetic number, because the mean of its divisors is an integer number (1752766).

Almost surely, 2^3505531 is an apocalyptic number.

3505531 is a deficient number, since it is larger than the sum of its proper divisors (1).

3505531 is an equidigital number, since it uses as much as digits as its factorization.

3505531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 3505531 is about 1872.3063317737. The cubic root of 3505531 is about 151.9093844709.

The spelling of 3505531 in words is "three million, five hundred five thousand, five hundred thirty-one".