555005000521 has 2 divisors, whose sum is σ = 555005000522. Its totient is φ = 555005000520.

The previous prime is 555005000479. The next prime is 555005000573. The reversal of 555005000521 is 125000500555.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 544644000000 + 10361000521 = 738000^2 + 101789^2 .

It is a cyclic number.

It is not a de Polignac number, because 555005000521 - 2¹³ = 555004992329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 555005000521.

It is not a weakly prime, because it can be changed into another prime (555005000621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277502500260 + 277502500261.

It is an arithmetic number, because the mean of its divisors is an integer number (277502500261).

Almost surely, 2^555005000521 is an apocalyptic number.

It is an amenable number.

555005000521 is a deficient number, since it is larger than the sum of its proper divisors (1).

555005000521 is an equidigital number, since it uses as much as digits as its factorization.

555005000521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6250, while the sum is 28.

The spelling of 555005000521 in words is "five hundred fifty-five billion, five million, five hundred twenty-one", and thus it is an aban number.