45475052281 has 2 divisors, whose sum is σ = 45475052282. Its totient is φ = 45475052280.

The previous prime is 45475052251. The next prime is 45475052299. The reversal of 45475052281 is 18225057454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37040466681 + 8434585600 = 192459^2 + 91840^2 .

It is a cyclic number.

It is not a de Polignac number, because 45475052281 - 2⁷ = 45475052153 is a prime.

It is a super-2 number, since 2×45475052281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45475052251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22737526140 + 22737526141.

It is an arithmetic number, because the mean of its divisors is an integer number (22737526141).

Almost surely, 2^45475052281 is an apocalyptic number.

It is an amenable number.

45475052281 is a deficient number, since it is larger than the sum of its proper divisors (1).

45475052281 is an equidigital number, since it uses as much as digits as its factorization.

45475052281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448000, while the sum is 43.

The spelling of 45475052281 in words is "forty-five billion, four hundred seventy-five million, fifty-two thousand, two hundred eighty-one".