5503642561 has 4 divisors (see below), whose sum is σ = 5742931392. Its totient is φ = 5264353732.

The previous prime is 5503642553. The next prime is 5503642579. The reversal of 5503642561 is 1652463055.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1652463055 = 5 ⋅330492611.

It is a cyclic number.

It is not a de Polignac number, because 5503642561 - 2³ = 5503642553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5503642561.

It is not an unprimeable number, because it can be changed into a prime (5503642861) 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, 119644381 + ... + 119644426.

It is an arithmetic number, because the mean of its divisors is an integer number (1435732848).

Almost surely, 2^5503642561 is an apocalyptic number.

It is an amenable number.

5503642561 is a deficient number, since it is larger than the sum of its proper divisors (239288831).

5503642561 is a wasteful number, since it uses less digits than its factorization.

5503642561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239288830.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 5503642561 is about 74186.5389474398. The cubic root of 5503642561 is about 1765.5637637638.

The spelling of 5503642561 in words is "five billion, five hundred three million, six hundred forty-two thousand, five hundred sixty-one".