20553620123527 has 2 divisors, whose sum is σ = 20553620123528. Its totient is φ = 20553620123526.

The previous prime is 20553620123429. The next prime is 20553620123551. The reversal of 20553620123527 is 72532102635502.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20553620123527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20553621123527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10276810061763 + 10276810061764.

It is an arithmetic number, because the mean of its divisors is an integer number (10276810061764).

Almost surely, 2^{20553620123527} is an apocalyptic number.

20553620123527 is a deficient number, since it is larger than the sum of its proper divisors (1).

20553620123527 is an equidigital number, since it uses as much as digits as its factorization.

20553620123527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756000, while the sum is 43.

The spelling of 20553620123527 in words is "twenty trillion, five hundred fifty-three billion, six hundred twenty million, one hundred twenty-three thousand, five hundred twenty-seven".