3533531 has 2 divisors, whose sum is σ = 3533532. Its totient is φ = 3533530.

The previous prime is 3533489. The next prime is 3533533. The reversal of 3533531 is 1353353.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3533531 is a prime.

It is a super-2 number, since 2×3533531² = 24971682655922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 3533533, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3533497 and 3533506.

It is not a weakly prime, because it can be changed into another prime (3533533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1766765 + 1766766.

It is an arithmetic number, because the mean of its divisors is an integer number (1766766).

Almost surely, 2^3533531 is an apocalyptic number.

3533531 is a deficient number, since it is larger than the sum of its proper divisors (1).

3533531 is an equidigital number, since it uses as much as digits as its factorization.

3533531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2025, while the sum is 23.

The square root of 3533531 is about 1879.7688687708. The cubic root of 3533531 is about 152.3127649270.

Adding to 3533531 its reverse (1353353), we get a palindrome (4886884).

The spelling of 3533531 in words is "three million, five hundred thirty-three thousand, five hundred thirty-one".