20525046576887 has 2 divisors, whose sum is σ = 20525046576888. Its totient is φ = 20525046576886.

The previous prime is 20525046576869. The next prime is 20525046576899. The reversal of 20525046576887 is 78867564052502.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20525046576887 - 2¹⁰ = 20525046575863 is a prime.

It is a super-2 number, since 2×20525046576887² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20525046576817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10262523288443 + 10262523288444.

It is an arithmetic number, because the mean of its divisors is an integer number (10262523288444).

Almost surely, 2^{20525046576887} is an apocalyptic number.

20525046576887 is a deficient number, since it is larger than the sum of its proper divisors (1).

20525046576887 is an equidigital number, since it uses as much as digits as its factorization.

20525046576887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792000, while the sum is 65.

The spelling of 20525046576887 in words is "twenty trillion, five hundred twenty-five billion, forty-six million, five hundred seventy-six thousand, eight hundred eighty-seven".