5561783399 has 4 divisors (see below), whose sum is σ = 5680119264. Its totient is φ = 5443447536.

The previous prime is 5561783389. The next prime is 5561783407. The reversal of 5561783399 is 9933871655.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5561783399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5561783309) 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, 59167862 + ... + 59167955.

It is an arithmetic number, because the mean of its divisors is an integer number (1420029816).

Almost surely, 2^5561783399 is an apocalyptic number.

5561783399 is a deficient number, since it is larger than the sum of its proper divisors (118335865).

5561783399 is a wasteful number, since it uses less digits than its factorization.

5561783399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118335864.

The product of its digits is 6123600, while the sum is 56.

The square root of 5561783399 is about 74577.3651921278. The cubic root of 5561783399 is about 1771.7591752808.

The spelling of 5561783399 in words is "five billion, five hundred sixty-one million, seven hundred eighty-three thousand, three hundred ninety-nine".