5561002749 has 8 divisors (see below), whose sum is σ = 7428227680. Its totient is φ = 3700556496.

The previous prime is 5561002723. The next prime is 5561002763. The reversal of 5561002749 is 9472001655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5561002749 - 2⁵ = 5561002717 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 (5561002709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1692754 + ... + 1696035.

It is an arithmetic number, because the mean of its divisors is an integer number (928528460).

Almost surely, 2^5561002749 is an apocalyptic number.

It is an amenable number.

5561002749 is a deficient number, since it is larger than the sum of its proper divisors (1867224931).

5561002749 is a wasteful number, since it uses less digits than its factorization.

5561002749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3389339.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 5561002749 is about 74572.1311818296. The cubic root of 5561002749 is about 1771.6762768998.

The spelling of 5561002749 in words is "five billion, five hundred sixty-one million, two thousand, seven hundred forty-nine".