1052550660391 has 2 divisors, whose sum is σ = 1052550660392. Its totient is φ = 1052550660390.

The previous prime is 1052550660377. The next prime is 1052550660437. The reversal of 1052550660391 is 1930660552501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1052550660391 - 2⁷ = 1052550660263 is a prime.

It is a super-2 number, since 2×1052550660391² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1052550660311) 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, 526275330195 + 526275330196.

It is an arithmetic number, because the mean of its divisors is an integer number (526275330196).

Almost surely, 2^{1052550660391} is an apocalyptic number.

1052550660391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1052550660391 is an equidigital number, since it uses as much as digits as its factorization.

1052550660391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 243000, while the sum is 43.

The spelling of 1052550660391 in words is "one trillion, fifty-two billion, five hundred fifty million, six hundred sixty thousand, three hundred ninety-one".