5605531 has 4 divisors (see below), whose sum is σ = 5700600. Its totient is φ = 5510464.

The previous prime is 5605499. The next prime is 5605553. The reversal of 5605531 is 1355065.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1355065 = 5 ⋅271013.

It is a cyclic number.

It is not a de Polignac number, because 5605531 - 2⁵ = 5605499 is a prime.

It is a super-2 number, since 2×5605531² = 62843955583922, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 5605496 and 5605505.

It is not an unprimeable number, because it can be changed into a prime (5605331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47446 + ... + 47563.

It is an arithmetic number, because the mean of its divisors is an integer number (1425150).

Almost surely, 2^5605531 is an apocalyptic number.

5605531 is a deficient number, since it is larger than the sum of its proper divisors (95069).

5605531 is an equidigital number, since it uses as much as digits as its factorization.

5605531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95068.

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

The square root of 5605531 is about 2367.6002618685. The cubic root of 5605531 is about 177.6392453615.

The spelling of 5605531 in words is "five million, six hundred five thousand, five hundred thirty-one".