7120055251 has 2 divisors, whose sum is σ = 7120055252. Its totient is φ = 7120055250.

The previous prime is 7120055249. The next prime is 7120055279. The reversal of 7120055251 is 1525500217.

7120055251 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (7120055279) can be obtained adding 7120055251 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7120055251 - 2¹ = 7120055249 is a prime.

Together with 7120055249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7120055281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3560027625 + 3560027626.

It is an arithmetic number, because the mean of its divisors is an integer number (3560027626).

Almost surely, 2^7120055251 is an apocalyptic number.

7120055251 is a deficient number, since it is larger than the sum of its proper divisors (1).

7120055251 is an equidigital number, since it uses as much as digits as its factorization.

7120055251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3500, while the sum is 28.

The square root of 7120055251 is about 84380.4198318544. The cubic root of 7120055251 is about 1923.8053194147.

Adding to 7120055251 its reverse (1525500217), we get a palindrome (8645555468).

The spelling of 7120055251 in words is "seven billion, one hundred twenty million, fifty-five thousand, two hundred fifty-one".