45050521181 has 2 divisors, whose sum is σ = 45050521182. Its totient is φ = 45050521180.

The previous prime is 45050521141. The next prime is 45050521207. The reversal of 45050521181 is 18112505054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43956896281 + 1093624900 = 209659^2 + 33070^2 .

It is a cyclic number.

It is not a de Polignac number, because 45050521181 - 2²² = 45046326877 is a prime.

It is a super-2 number, since 2×45050521181² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45050521141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22525260590 + 22525260591.

It is an arithmetic number, because the mean of its divisors is an integer number (22525260591).

Almost surely, 2^45050521181 is an apocalyptic number.

It is an amenable number.

45050521181 is a deficient number, since it is larger than the sum of its proper divisors (1).

45050521181 is an equidigital number, since it uses as much as digits as its factorization.

45050521181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8000, while the sum is 32.

The spelling of 45050521181 in words is "forty-five billion, fifty million, five hundred twenty-one thousand, one hundred eighty-one".