5645211551527 has 2 divisors, whose sum is σ = 5645211551528. Its totient is φ = 5645211551526.

The previous prime is 5645211551521. The next prime is 5645211551587. The reversal of 5645211551527 is 7251551125465.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5645211551527 is a prime.

It is a super-2 number, since 2×5645211551527² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5645211551521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2822605775763 + 2822605775764.

It is an arithmetic number, because the mean of its divisors is an integer number (2822605775764).

Almost surely, 2^{5645211551527} is an apocalyptic number.

5645211551527 is a deficient number, since it is larger than the sum of its proper divisors (1).

5645211551527 is an equidigital number, since it uses as much as digits as its factorization.

5645211551527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2100000, while the sum is 49.

The spelling of 5645211551527 in words is "five trillion, six hundred forty-five billion, two hundred eleven million, five hundred fifty-one thousand, five hundred twenty-seven".