900206052481 has 2 divisors, whose sum is σ = 900206052482. Its totient is φ = 900206052480.

The previous prime is 900206052479. The next prime is 900206052509. The reversal of 900206052481 is 184250602009.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 830496851856 + 69709200625 = 911316^2 + 264025^2 .

It is a cyclic number.

It is not a de Polignac number, because 900206052481 - 2¹ = 900206052479 is a prime.

It is a super-2 number, since 2×900206052481² (a number of 25 digits) contains 22 as substring.

Together with 900206052479, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 900206052481.

It is not a weakly prime, because it can be changed into another prime (900206052401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450103026240 + 450103026241.

It is an arithmetic number, because the mean of its divisors is an integer number (450103026241).

Almost surely, 2^900206052481 is an apocalyptic number.

It is an amenable number.

900206052481 is a deficient number, since it is larger than the sum of its proper divisors (1).

900206052481 is an equidigital number, since it uses as much as digits as its factorization.

900206052481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 900206052481 in words is "nine hundred billion, two hundred six million, fifty-two thousand, four hundred eighty-one".