220513625 has 16 divisors (see below), whose sum is σ = 277789824. Its totient is φ = 174751600.

The previous prime is 220513583. The next prime is 220513661. The reversal of 220513625 is 526315022.

It is not a de Polignac number, because 220513625 - 2⁸ = 220513369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220513594 and 220513603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5132 + ... + 21618.

It is an arithmetic number, because the mean of its divisors is an integer number (17361864).

Almost surely, 2^220513625 is an apocalyptic number.

220513625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220513625 is a deficient number, since it is larger than the sum of its proper divisors (57276199).

220513625 is a wasteful number, since it uses less digits than its factorization.

220513625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16609 (or 16599 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 220513625 is about 14849.7011754446. The cubic root of 220513625 is about 604.1505050506.

Adding to 220513625 its reverse (526315022), we get a palindrome (746828647).

The spelling of 220513625 in words is "two hundred twenty million, five hundred thirteen thousand, six hundred twenty-five".