7550561109 has 16 divisors (see below), whose sum is σ = 12390664832. Its totient is φ = 3982713408.

The previous prime is 7550561059. The next prime is 7550561113. The reversal of 7550561109 is 9011650557.

It is not a de Polignac number, because 7550561109 - 2⁷ = 7550560981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7550561119) 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, 13828594 + ... + 13829139.

It is an arithmetic number, because the mean of its divisors is an integer number (774416552).

Almost surely, 2^7550561109 is an apocalyptic number.

It is an amenable number.

7550561109 is a deficient number, since it is larger than the sum of its proper divisors (4840103723).

7550561109 is a wasteful number, since it uses less digits than its factorization.

7550561109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27657756.

The product of its (nonzero) digits is 47250, while the sum is 39.

The square root of 7550561109 is about 86893.9647443941. The cubic root of 7550561109 is about 1961.8226406942.

The spelling of 7550561109 in words is "seven billion, five hundred fifty million, five hundred sixty-one thousand, one hundred nine".