2079415561 has 2 divisors, whose sum is σ = 2079415562. Its totient is φ = 2079415560.

The previous prime is 2079415523. The next prime is 2079415601. The reversal of 2079415561 is 1655149702.

2079415561 = 32244² + 32245².

It is an a-pointer prime, because the next prime (2079415601) can be obtained adding 2079415561 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1039740025 + 1039675536 = 32245^2 + 32244^2 .

It is a cyclic number.

It is not a de Polignac number, because 2079415561 - 2¹¹ = 2079413513 is a prime.

It is not a weakly prime, because it can be changed into another prime (2079415361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1039707780 + 1039707781.

It is an arithmetic number, because the mean of its divisors is an integer number (1039707781).

Almost surely, 2^2079415561 is an apocalyptic number.

2079415561 is the 32245-th centered square number.

It is an amenable number.

2079415561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2079415561 is an equidigital number, since it uses as much as digits as its factorization.

2079415561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 2079415561 is about 45600.6092174216. The cubic root of 2079415561 is about 1276.3812913792.

The spelling of 2079415561 in words is "two billion, seventy-nine million, four hundred fifteen thousand, five hundred sixty-one".