5215255470709 has 2 divisors, whose sum is σ = 5215255470710. Its totient is φ = 5215255470708.

The previous prime is 5215255470661. The next prime is 5215255470793. The reversal of 5215255470709 is 9070745525125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3167766351684 + 2047489119025 = 1779822^2 + 1430905^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5215255470709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5215255477709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2607627735354 + 2607627735355.

It is an arithmetic number, because the mean of its divisors is an integer number (2607627735355).

Almost surely, 2^{5215255470709} is an apocalyptic number.

It is an amenable number.

5215255470709 is a deficient number, since it is larger than the sum of its proper divisors (1).

5215255470709 is an equidigital number, since it uses as much as digits as its factorization.

5215255470709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4410000, while the sum is 52.

The spelling of 5215255470709 in words is "five trillion, two hundred fifteen billion, two hundred fifty-five million, four hundred seventy thousand, seven hundred nine".