7565225149 has 2 divisors, whose sum is σ = 7565225150. Its totient is φ = 7565225148.

The previous prime is 7565225123. The next prime is 7565225177. The reversal of 7565225149 is 9415225657.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5953202649 + 1612022500 = 77157^2 + 40150^2 .

It is an emirp because it is prime and its reverse (9415225657) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7565225149 - 2⁹ = 7565224637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7565225099 and 7565225108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7565925149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3782612574 + 3782612575.

It is an arithmetic number, because the mean of its divisors is an integer number (3782612575).

Almost surely, 2^7565225149 is an apocalyptic number.

It is an amenable number.

7565225149 is a deficient number, since it is larger than the sum of its proper divisors (1).

7565225149 is an equidigital number, since it uses as much as digits as its factorization.

7565225149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756000, while the sum is 46.

The square root of 7565225149 is about 86978.3027484441. The cubic root of 7565225149 is about 1963.0918462365.

The spelling of 7565225149 in words is "seven billion, five hundred sixty-five million, two hundred twenty-five thousand, one hundred forty-nine".