15250201649 has 2 divisors, whose sum is σ = 15250201650. Its totient is φ = 15250201648.

The previous prime is 15250201619. The next prime is 15250201669. The reversal of 15250201649 is 94610205251.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13080039424 + 2170162225 = 114368^2 + 46585^2 .

It is a cyclic number.

It is not a de Polignac number, because 15250201649 - 2²⁸ = 14981766193 is a prime.

It is not a weakly prime, because it can be changed into another prime (15250201619) 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, 7625100824 + 7625100825.

It is an arithmetic number, because the mean of its divisors is an integer number (7625100825).

Almost surely, 2^15250201649 is an apocalyptic number.

It is an amenable number.

15250201649 is a deficient number, since it is larger than the sum of its proper divisors (1).

15250201649 is an equidigital number, since it uses as much as digits as its factorization.

15250201649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 15250201649 in words is "fifteen billion, two hundred fifty million, two hundred one thousand, six hundred forty-nine".