5561185801 has 4 divisors (see below), whose sum is σ = 5802976512. Its totient is φ = 5319395092.

The previous prime is 5561185787. The next prime is 5561185813. The reversal of 5561185801 is 1085811655.

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 not a de Polignac number, because 5561185801 - 2⁵ = 5561185769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5561185891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120895321 + ... + 120895366.

It is an arithmetic number, because the mean of its divisors is an integer number (1450744128).

Almost surely, 2^5561185801 is an apocalyptic number.

It is an amenable number.

5561185801 is a deficient number, since it is larger than the sum of its proper divisors (241790711).

5561185801 is a wasteful number, since it uses less digits than its factorization.

5561185801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241790710.

The product of its (nonzero) digits is 48000, while the sum is 40.

The square root of 5561185801 is about 74573.3585203188. The cubic root of 5561185801 is about 1771.6957161594.

The spelling of 5561185801 in words is "five billion, five hundred sixty-one million, one hundred eighty-five thousand, eight hundred one".