11055920251 has 2 divisors, whose sum is σ = 11055920252. Its totient is φ = 11055920250.

The previous prime is 11055920221. The next prime is 11055920269. The reversal of 11055920251 is 15202955011.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11055920251 - 2⁵ = 11055920219 is a prime.

It is not a weakly prime, because it can be changed into another prime (11055920201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5527960125 + 5527960126.

It is an arithmetic number, because the mean of its divisors is an integer number (5527960126).

Almost surely, 2^11055920251 is an apocalyptic number.

11055920251 is a deficient number, since it is larger than the sum of its proper divisors (1).

11055920251 is an equidigital number, since it uses as much as digits as its factorization.

11055920251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 11055920251 in words is "eleven billion, fifty-five million, nine hundred twenty thousand, two hundred fifty-one".