7445522255497 has 2 divisors, whose sum is σ = 7445522255498. Its totient is φ = 7445522255496.

The previous prime is 7445522255447. The next prime is 7445522255503. The reversal of 7445522255497 is 7945522255447.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6267507243001 + 1178015012496 = 2503499^2 + 1085364^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7445522255497 is a prime.

It is a super-2 number, since 2×7445522255497² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7445522255447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3722761127748 + 3722761127749.

It is an arithmetic number, because the mean of its divisors is an integer number (3722761127749).

Almost surely, 2^{7445522255497} is an apocalyptic number.

It is an amenable number.

7445522255497 is a deficient number, since it is larger than the sum of its proper divisors (1).

7445522255497 is an equidigital number, since it uses as much as digits as its factorization.

7445522255497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120000, while the sum is 61.

The spelling of 7445522255497 in words is "seven trillion, four hundred forty-five billion, five hundred twenty-two million, two hundred fifty-five thousand, four hundred ninety-seven".