555505255525 has 18 divisors (see below), whose sum is σ = 757139894546. Its totient is φ = 404003820000.

The previous prime is 555505255523. The next prime is 555505255537. The reversal of 555505255525 is 525552505555.

It can be written as a sum of positive squares in 3 ways, for example, as 119164420804 + 436340834721 = 345202^2 + 660561^2 .

It is not a de Polignac number, because 555505255525 - 2¹ = 555505255523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555505255523) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 91816026 + ... + 91822075.

Almost surely, 2^555505255525 is an apocalyptic number.

555505255525 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

555505255525 is a deficient number, since it is larger than the sum of its proper divisors (201634639021).

555505255525 is a wasteful number, since it uses less digits than its factorization.

555505255525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183638133 (or 183638117 counting only the distinct ones).

The product of its (nonzero) digits is 7812500, while the sum is 49.

The spelling of 555505255525 in words is "five hundred fifty-five billion, five hundred five million, two hundred fifty-five thousand, five hundred twenty-five".