10055559581 has 2 divisors, whose sum is σ = 10055559582. Its totient is φ = 10055559580.

The previous prime is 10055559539. The next prime is 10055559617. The reversal of 10055559581 is 18595555001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9551152900 + 504406681 = 97730^2 + 22459^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10055559581 is a prime.

It is a super-2 number, since 2×10055559581² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10055559781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5027779790 + 5027779791.

It is an arithmetic number, because the mean of its divisors is an integer number (5027779791).

Almost surely, 2^10055559581 is an apocalyptic number.

It is an amenable number.

10055559581 is a deficient number, since it is larger than the sum of its proper divisors (1).

10055559581 is an equidigital number, since it uses as much as digits as its factorization.

10055559581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225000, while the sum is 44.

The spelling of 10055559581 in words is "ten billion, fifty-five million, five hundred fifty-nine thousand, five hundred eighty-one".