7555125449 has 2 divisors, whose sum is σ = 7555125450. Its totient is φ = 7555125448.

The previous prime is 7555125379. The next prime is 7555125463. The reversal of 7555125449 is 9445215557.

7555125449 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6554035849 + 1001089600 = 80957^2 + 31640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7555125449 is a prime.

It is not a weakly prime, because it can be changed into another prime (7555125749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3777562724 + 3777562725.

It is an arithmetic number, because the mean of its divisors is an integer number (3777562725).

Almost surely, 2^7555125449 is an apocalyptic number.

It is an amenable number.

7555125449 is a deficient number, since it is larger than the sum of its proper divisors (1).

7555125449 is an equidigital number, since it uses as much as digits as its factorization.

7555125449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260000, while the sum is 47.

The square root of 7555125449 is about 86920.2246258027. The cubic root of 7555125449 is about 1962.2178705631.

The spelling of 7555125449 in words is "seven billion, five hundred fifty-five million, one hundred twenty-five thousand, four hundred forty-nine".