15555055211 has 2 divisors, whose sum is σ = 15555055212. Its totient is φ = 15555055210.

The previous prime is 15555055183. The next prime is 15555055237. The reversal of 15555055211 is 11255055551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15555055211 - 2²⁶ = 15487946347 is a prime.

It is not a weakly prime, because it can be changed into another prime (15555015211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7777527605 + 7777527606.

It is an arithmetic number, because the mean of its divisors is an integer number (7777527606).

Almost surely, 2^15555055211 is an apocalyptic number.

15555055211 is a deficient number, since it is larger than the sum of its proper divisors (1).

15555055211 is an equidigital number, since it uses as much as digits as its factorization.

15555055211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31250, while the sum is 35.

The spelling of 15555055211 in words is "fifteen billion, five hundred fifty-five million, fifty-five thousand, two hundred eleven".