6425604563 has 32 divisors (see below), whose sum is σ = 7963401600. Its totient is φ = 5164615680.

The previous prime is 6425604557. The next prime is 6425604571. The reversal of 6425604563 is 3654065246.

It is a happy number.

It is not a de Polignac number, because 6425604563 - 2⁶ = 6425604499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6425604563.

It is not an unprimeable number, because it can be changed into a prime (6425604503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1706603 + ... + 1710363.

It is an arithmetic number, because the mean of its divisors is an integer number (248856300).

Almost surely, 2^6425604563 is an apocalyptic number.

6425604563 is a deficient number, since it is larger than the sum of its proper divisors (1537797037).

6425604563 is a wasteful number, since it uses less digits than its factorization.

6425604563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4092 (or 4078 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

The square root of 6425604563 is about 80159.8687810802. The cubic root of 6425604563 is about 1859.1081941879.

The spelling of 6425604563 in words is "six billion, four hundred twenty-five million, six hundred four thousand, five hundred sixty-three".