220525625 has 10 divisors (see below), whose sum is σ = 275569602. Its totient is φ = 176420000.

The previous prime is 220525607. The next prime is 220525637. The reversal of 220525625 is 526525022.

220525625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 114682681 + 105842944 = 10709^2 + 10288^2 .

It is not a de Polignac number, because 220525625 - 2⁶ = 220525561 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 175796 + ... + 177045.

Almost surely, 2^220525625 is an apocalyptic number.

220525625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220525625 is a deficient number, since it is larger than the sum of its proper divisors (55043977).

220525625 is an frugal number, since it uses more digits than its factorization.

220525625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352861 (or 352846 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 220525625 is about 14850.1052184825. The cubic root of 220525625 is about 604.1614638210.

The spelling of 220525625 in words is "two hundred twenty million, five hundred twenty-five thousand, six hundred twenty-five".