15541255201 has 2 divisors, whose sum is σ = 15541255202. Its totient is φ = 15541255200.

The previous prime is 15541255199. The next prime is 15541255343. The reversal of 15541255201 is 10255214551.

15541255201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11167416976 + 4373838225 = 105676^2 + 66135^2 .

It is a cyclic number.

It is not a de Polignac number, because 15541255201 - 2¹ = 15541255199 is a prime.

It is a super-2 number, since 2×15541255201² (a number of 21 digits) contains 22 as substring.

Together with 15541255199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (15541255601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7770627600 + 7770627601.

It is an arithmetic number, because the mean of its divisors is an integer number (7770627601).

Almost surely, 2^15541255201 is an apocalyptic number.

It is an amenable number.

15541255201 is a deficient number, since it is larger than the sum of its proper divisors (1).

15541255201 is an equidigital number, since it uses as much as digits as its factorization.

15541255201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10000, while the sum is 31.

Adding to 15541255201 its reverse (10255214551), we get a palindrome (25796469752).

The spelling of 15541255201 in words is "fifteen billion, five hundred forty-one million, two hundred fifty-five thousand, two hundred one".