5603531 has 4 divisors (see below), whose sum is σ = 5709312. Its totient is φ = 5497752.

The previous prime is 5603519. The next prime is 5603551. The reversal of 5603531 is 1353065.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5603531 - 2¹⁰ = 5602507 is a prime.

It is a super-2 number, since 2×5603531² = 62799119335922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5603497 and 5603506.

It is not an unprimeable number, because it can be changed into a prime (5603501) 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, 52811 + ... + 52916.

It is an arithmetic number, because the mean of its divisors is an integer number (1427328).

Almost surely, 2^5603531 is an apocalyptic number.

5603531 is a deficient number, since it is larger than the sum of its proper divisors (105781).

5603531 is a wasteful number, since it uses less digits than its factorization.

5603531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105780.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 5603531 is about 2367.1778555909. The cubic root of 5603531 is about 177.6181161856.

Adding to 5603531 its reverse (1353065), we get a palindrome (6956596).

The spelling of 5603531 in words is "five million, six hundred three thousand, five hundred thirty-one".