625005563 has 8 divisors (see below), whose sum is σ = 769237728. Its totient is φ = 494509824.

The previous prime is 625005553. The next prime is 625005569. The reversal of 625005563 is 365500526.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-625005563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (625005569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3434006 + ... + 3434187.

It is an arithmetic number, because the mean of its divisors is an integer number (96154716).

Almost surely, 2^625005563 is an apocalyptic number.

625005563 is a deficient number, since it is larger than the sum of its proper divisors (144232165).

625005563 is a wasteful number, since it uses less digits than its factorization.

625005563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6868213.

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 625005563 is about 25000.1112597524. Note that the first 3 decimals coincide. The cubic root of 625005563 is about 854.9905100231.

The spelling of 625005563 in words is "six hundred twenty-five million, five thousand, five hundred sixty-three".