1250422801 has 2 divisors, whose sum is σ = 1250422802. Its totient is φ = 1250422800.

The previous prime is 1250422769. The next prime is 1250422837. The reversal of 1250422801 is 1082240521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 779749776 + 470673025 = 27924^2 + 21695^2 .

It is an emirp because it is prime and its reverse (1082240521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1250422801 - 2⁵ = 1250422769 is a prime.

It is not a weakly prime, because it can be changed into another prime (1250422861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625211400 + 625211401.

It is an arithmetic number, because the mean of its divisors is an integer number (625211401).

Almost surely, 2^1250422801 is an apocalyptic number.

It is an amenable number.

1250422801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250422801 is an equidigital number, since it uses as much as digits as its factorization.

1250422801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 1250422801 is about 35361.3178628851. The cubic root of 1250422801 is about 1077.3387842773.

The spelling of 1250422801 in words is "one billion, two hundred fifty million, four hundred twenty-two thousand, eight hundred one".