102055540450025 has 6 divisors (see below), whose sum is σ = 126548870158062. Its totient is φ = 81644432360000.

The previous prime is 102055540450013. The next prime is 102055540450057. The reversal of 102055540450025 is 520054045550201.

It can be written as a sum of positive squares in 3 ways, for example, as 862322103769 + 101193218346256 = 928613^2 + 10059484^2 .

It is a de Polignac number, because none of the positive numbers 2^k-102055540450025 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2041110808976 + ... + 2041110809025.

It is an arithmetic number, because the mean of its divisors is an integer number (21091478359677).

Almost surely, 2^{102055540450025} is an apocalyptic number.

It is an amenable number.

102055540450025 is a deficient number, since it is larger than the sum of its proper divisors (24493329708037).

102055540450025 is an equidigital number, since it uses as much as digits as its factorization.

102055540450025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4082221618011 (or 4082221618006 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 38.

The spelling of 102055540450025 in words is "one hundred two trillion, fifty-five billion, five hundred forty million, four hundred fifty thousand, twenty-five".