990250473301 has 2 divisors, whose sum is σ = 990250473302. Its totient is φ = 990250473300.

The previous prime is 990250473257. The next prime is 990250473313. The reversal of 990250473301 is 103374052099.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 752911967025 + 237338506276 = 867705^2 + 487174^2 .

It is a cyclic number.

It is not a de Polignac number, because 990250473301 - 2¹¹ = 990250471253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (990250473391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495125236650 + 495125236651.

It is an arithmetic number, because the mean of its divisors is an integer number (495125236651).

Almost surely, 2^990250473301 is an apocalyptic number.

It is an amenable number.

990250473301 is a deficient number, since it is larger than the sum of its proper divisors (1).

990250473301 is an equidigital number, since it uses as much as digits as its factorization.

990250473301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 43.

The spelling of 990250473301 in words is "nine hundred ninety billion, two hundred fifty million, four hundred seventy-three thousand, three hundred one".