7055651561 has 12 divisors (see below), whose sum is σ = 8225424900. Its totient is φ = 6034563360.

The previous prime is 7055651531. The next prime is 7055651579. The reversal of 7055651561 is 1651565507.

It can be written as a sum of positive squares in 2 ways, for example, as 1036840000 + 6018811561 = 32200^2 + 77581^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7055651561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7055651531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133586 + ... + 178763.

It is an arithmetic number, because the mean of its divisors is an integer number (685452075).

Almost surely, 2^7055651561 is an apocalyptic number.

It is an amenable number.

7055651561 is a deficient number, since it is larger than the sum of its proper divisors (1169773339).

7055651561 is a wasteful number, since it uses less digits than its factorization.

7055651561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312824 (or 312817 counting only the distinct ones).

The product of its (nonzero) digits is 157500, while the sum is 41.

The square root of 7055651561 is about 83997.9259327276. The cubic root of 7055651561 is about 1917.9872173123.

The spelling of 7055651561 in words is "seven billion, fifty-five million, six hundred fifty-one thousand, five hundred sixty-one".