15505459201 has 2 divisors, whose sum is σ = 15505459202. Its totient is φ = 15505459200.

The previous prime is 15505459169. The next prime is 15505459237. The reversal of 15505459201 is 10295450551.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12344321025 + 3161138176 = 111105^2 + 56224^2 .

It is an emirp because it is prime and its reverse (10295450551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15505459201 - 2⁵ = 15505459169 is a prime.

It is a super-3 number, since 3×15505459201³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (15505459601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7752729600 + 7752729601.

It is an arithmetic number, because the mean of its divisors is an integer number (7752729601).

Almost surely, 2^15505459201 is an apocalyptic number.

It is an amenable number.

15505459201 is a deficient number, since it is larger than the sum of its proper divisors (1).

15505459201 is an equidigital number, since it uses as much as digits as its factorization.

15505459201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45000, while the sum is 37.

The spelling of 15505459201 in words is "fifteen billion, five hundred five million, four hundred fifty-nine thousand, two hundred one".