15550050011 has 2 divisors, whose sum is σ = 15550050012. Its totient is φ = 15550050010.

The previous prime is 15550050001. The next prime is 15550050031. The reversal of 15550050011 is 11005005551.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15550050011 - 2²² = 15545855707 is a prime.

It is a super-2 number, since 2×15550050011² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15550050001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7775025005 + 7775025006.

It is an arithmetic number, because the mean of its divisors is an integer number (7775025006).

Almost surely, 2^15550050011 is an apocalyptic number.

15550050011 is a deficient number, since it is larger than the sum of its proper divisors (1).

15550050011 is an equidigital number, since it uses as much as digits as its factorization.

15550050011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 625, while the sum is 23.

Adding to 15550050011 its reverse (11005005551), we get a palindrome (26555055562).

The spelling of 15550050011 in words is "fifteen billion, five hundred fifty million, fifty thousand, eleven".