15550050227 has 2 divisors, whose sum is σ = 15550050228. Its totient is φ = 15550050226.

The previous prime is 15550050223. The next prime is 15550050259. The reversal of 15550050227 is 72205005551.

It is an a-pointer prime, because the next prime (15550050259) can be obtained adding 15550050227 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15550050227 - 2² = 15550050223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15550050193 and 15550050202.

It is not a weakly prime, because it can be changed into another prime (15550050221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7775025113 + 7775025114.

It is an arithmetic number, because the mean of its divisors is an integer number (7775025114).

Almost surely, 2^15550050227 is an apocalyptic number.

15550050227 is a deficient number, since it is larger than the sum of its proper divisors (1).

15550050227 is an equidigital number, since it uses as much as digits as its factorization.

15550050227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17500, while the sum is 32.

Adding to 15550050227 its reverse (72205005551), we get a palindrome (87755055778).

The spelling of 15550050227 in words is "fifteen billion, five hundred fifty million, fifty thousand, two hundred twenty-seven".