26247972253 has 2 divisors, whose sum is σ = 26247972254. Its totient is φ = 26247972252.

The previous prime is 26247972221. The next prime is 26247972263. The reversal of 26247972253 is 35227974262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19073543449 + 7174428804 = 138107^2 + 84702^2 .

It is a cyclic number.

It is not a de Polignac number, because 26247972253 - 2⁵ = 26247972221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26247972197 and 26247972206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26247972263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13123986126 + 13123986127.

It is an arithmetic number, because the mean of its divisors is an integer number (13123986127).

Almost surely, 2^26247972253 is an apocalyptic number.

It is an amenable number.

26247972253 is a deficient number, since it is larger than the sum of its proper divisors (1).

26247972253 is an equidigital number, since it uses as much as digits as its factorization.

26247972253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 49.

The spelling of 26247972253 in words is "twenty-six billion, two hundred forty-seven million, nine hundred seventy-two thousand, two hundred fifty-three".