27225782513 has 2 divisors, whose sum is σ = 27225782514. Its totient is φ = 27225782512.

The previous prime is 27225782501. The next prime is 27225782567. The reversal of 27225782513 is 31528752272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24521054464 + 2704728049 = 156592^2 + 52007^2 .

It is a cyclic number.

It is not a de Polignac number, because 27225782513 - 2⁴ = 27225782497 is a prime.

It is not a weakly prime, because it can be changed into another prime (27221782513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13612891256 + 13612891257.

It is an arithmetic number, because the mean of its divisors is an integer number (13612891257).

Almost surely, 2^27225782513 is an apocalyptic number.

It is an amenable number.

27225782513 is a deficient number, since it is larger than the sum of its proper divisors (1).

27225782513 is an equidigital number, since it uses as much as digits as its factorization.

27225782513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 470400, while the sum is 44.

The spelling of 27225782513 in words is "twenty-seven billion, two hundred twenty-five million, seven hundred eighty-two thousand, five hundred thirteen".