2087515657553 has 2 divisors, whose sum is σ = 2087515657554. Its totient is φ = 2087515657552.

The previous prime is 2087515657541. The next prime is 2087515657607. The reversal of 2087515657553 is 3557565157802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2086456024849 + 1059632704 = 1444457^2 + 32552^2 .

It is a cyclic number.

It is not a de Polignac number, because 2087515657553 - 2¹⁸ = 2087515395409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2087515657492 and 2087515657501.

It is not a weakly prime, because it can be changed into another prime (2087515651553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1043757828776 + 1043757828777.

It is an arithmetic number, because the mean of its divisors is an integer number (1043757828777).

Almost surely, 2^{2087515657553} is an apocalyptic number.

It is an amenable number.

2087515657553 is a deficient number, since it is larger than the sum of its proper divisors (1).

2087515657553 is an equidigital number, since it uses as much as digits as its factorization.

2087515657553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44100000, while the sum is 59.

The spelling of 2087515657553 in words is "two trillion, eighty-seven billion, five hundred fifteen million, six hundred fifty-seven thousand, five hundred fifty-three".