1052550659891 has 2 divisors, whose sum is σ = 1052550659892. Its totient is φ = 1052550659890.

The previous prime is 1052550659879. The next prime is 1052550659903. The reversal of 1052550659891 is 1989560552501.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1052550659879) and next prime (1052550659903).

It is a cyclic number.

It is not a de Polignac number, because 1052550659891 - 2³⁰ = 1051476918067 is a prime.

It is a super-2 number, since 2×1052550659891² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1052550659191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526275329945 + 526275329946.

It is an arithmetic number, because the mean of its divisors is an integer number (526275329946).

Almost surely, 2^{1052550659891} is an apocalyptic number.

1052550659891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1052550659891 is an equidigital number, since it uses as much as digits as its factorization.

1052550659891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860000, while the sum is 56.

The spelling of 1052550659891 in words is "one trillion, fifty-two billion, five hundred fifty million, six hundred fifty-nine thousand, eight hundred ninety-one".