2715226561 has 2 divisors, whose sum is σ = 2715226562. Its totient is φ = 2715226560.

The previous prime is 2715226513. The next prime is 2715226607. The reversal of 2715226561 is 1656225172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2699425936 + 15800625 = 51956^2 + 3975^2 .

It is a cyclic number.

It is not a de Polignac number, because 2715226561 - 2¹⁷ = 2715095489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2715226561.

It is not a weakly prime, because it can be changed into another prime (2715226511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1357613280 + 1357613281.

It is an arithmetic number, because the mean of its divisors is an integer number (1357613281).

Almost surely, 2^2715226561 is an apocalyptic number.

It is an amenable number.

2715226561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2715226561 is an equidigital number, since it uses as much as digits as its factorization.

2715226561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 37.

The square root of 2715226561 is about 52107.8358886646. The cubic root of 2715226561 is about 1395.0893535260.

The spelling of 2715226561 in words is "two billion, seven hundred fifteen million, two hundred twenty-six thousand, five hundred sixty-one".