10009550254981 has 2 divisors, whose sum is σ = 10009550254982. Its totient is φ = 10009550254980.

The previous prime is 10009550254943. The next prime is 10009550255017. The reversal of 10009550254981 is 18945205590001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8233221070881 + 1776329184100 = 2869359^2 + 1332790^2 .

It is a cyclic number.

It is not a de Polignac number, because 10009550254981 - 2⁹ = 10009550254469 is a prime.

It is a super-2 number, since 2×10009550254981² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10009550204981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5004775127490 + 5004775127491.

It is an arithmetic number, because the mean of its divisors is an integer number (5004775127491).

Almost surely, 2^{10009550254981} is an apocalyptic number.

It is an amenable number.

10009550254981 is a deficient number, since it is larger than the sum of its proper divisors (1).

10009550254981 is an equidigital number, since it uses as much as digits as its factorization.

10009550254981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648000, while the sum is 49.

The spelling of 10009550254981 in words is "ten trillion, nine billion, five hundred fifty million, two hundred fifty-four thousand, nine hundred eighty-one".