5561945097 has 16 divisors (see below), whose sum is σ = 7885874880. Its totient is φ = 3474862592.

The previous prime is 5561945087. The next prime is 5561945099. The reversal of 5561945097 is 7905491655.

5561945097 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 5561945097 - 2⁶ = 5561945033 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (5561945099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222147 + ... + 245912.

It is an arithmetic number, because the mean of its divisors is an integer number (492867180).

Almost surely, 2^5561945097 is an apocalyptic number.

It is an amenable number.

5561945097 is a deficient number, since it is larger than the sum of its proper divisors (2323929783).

5561945097 is a wasteful number, since it uses less digits than its factorization.

5561945097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468312.

The product of its (nonzero) digits is 1701000, while the sum is 51.

The square root of 5561945097 is about 74578.4492799361. The cubic root of 5561945097 is about 1771.7763452613.

The spelling of 5561945097 in words is "five billion, five hundred sixty-one million, nine hundred forty-five thousand, ninety-seven".