7478424553 has 2 divisors, whose sum is σ = 7478424554. Its totient is φ = 7478424552.

The previous prime is 7478424521. The next prime is 7478424587. The reversal of 7478424553 is 3554248747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7247627689 + 230796864 = 85133^2 + 15192^2 .

It is a cyclic number.

It is not a de Polignac number, because 7478424553 - 2⁵ = 7478424521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7478424497 and 7478424506.

It is not a weakly prime, because it can be changed into another prime (7478421553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3739212276 + 3739212277.

It is an arithmetic number, because the mean of its divisors is an integer number (3739212277).

Almost surely, 2^7478424553 is an apocalyptic number.

It is an amenable number.

7478424553 is a deficient number, since it is larger than the sum of its proper divisors (1).

7478424553 is an equidigital number, since it uses as much as digits as its factorization.

7478424553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3763200, while the sum is 49.

The square root of 7478424553 is about 86477.8847625218. The cubic root of 7478424553 is about 1955.5550174013. Note that the first 3 decimals are identical.

The spelling of 7478424553 in words is "seven billion, four hundred seventy-eight million, four hundred twenty-four thousand, five hundred fifty-three".