27650516501 has 2 divisors, whose sum is σ = 27650516502. Its totient is φ = 27650516500.

The previous prime is 27650516477. The next prime is 27650516519. The reversal of 27650516501 is 10561505672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27622107601 + 28408900 = 166199^2 + 5330^2 .

It is a cyclic number.

It is not a de Polignac number, because 27650516501 - 2²⁶ = 27583407637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27650516801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13825258250 + 13825258251.

It is an arithmetic number, because the mean of its divisors is an integer number (13825258251).

Almost surely, 2^27650516501 is an apocalyptic number.

It is an amenable number.

27650516501 is a deficient number, since it is larger than the sum of its proper divisors (1).

27650516501 is an equidigital number, since it uses as much as digits as its factorization.

27650516501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63000, while the sum is 38.

The spelling of 27650516501 in words is "twenty-seven billion, six hundred fifty million, five hundred sixteen thousand, five hundred one".