625563555 has 16 divisors (see below), whose sum is σ = 1007533824. Its totient is φ = 331423200.

The previous prime is 625563541. The next prime is 625563577. The reversal of 625563555 is 555365526.

625563555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 625563555 - 2⁷ = 625563427 is a prime.

It is a super-2 number, since 2×625563555² = 782659522688476050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135829 + ... + 140358.

It is an arithmetic number, because the mean of its divisors is an integer number (62970864).

Almost surely, 2^625563555 is an apocalyptic number.

625563555 is a deficient number, since it is larger than the sum of its proper divisors (381970269).

625563555 is a wasteful number, since it uses less digits than its factorization.

625563555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276346.

The product of its digits is 675000, while the sum is 42.

The square root of 625563555 is about 25011.2685603909. The cubic root of 625563555 is about 855.2448736044.

The spelling of 625563555 in words is "six hundred twenty-five million, five hundred sixty-three thousand, five hundred fifty-five".