5003603561 has 4 divisors (see below), whose sum is σ = 5458476624. Its totient is φ = 4548730500.

The previous prime is 5003603543. The next prime is 5003603567. The reversal of 5003603561 is 1653063005.

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 a de Polignac number, because none of the positive numbers 2^k-5003603561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5003603567) 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, 227436515 + ... + 227436536.

It is an arithmetic number, because the mean of its divisors is an integer number (1364619156).

Almost surely, 2^5003603561 is an apocalyptic number.

It is an amenable number.

5003603561 is a deficient number, since it is larger than the sum of its proper divisors (454873063).

5003603561 is a wasteful number, since it uses less digits than its factorization.

5003603561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454873062.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 5003603561 is about 70736.1545533824. The cubic root of 5003603561 is about 1710.3866482021.

Adding to 5003603561 its reverse (1653063005), we get a palindrome (6656666566).

The spelling of 5003603561 in words is "five billion, three million, six hundred three thousand, five hundred sixty-one".