220563525 has 96 divisors (see below), whose sum is σ = 475469568. Its totient is φ = 87552000.

The previous prime is 220563517. The next prime is 220563557. The reversal of 220563525 is 525365022.

It is not a de Polignac number, because 220563525 - 2³ = 220563517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220563492 and 220563501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 115075 + ... + 116975.

It is an arithmetic number, because the mean of its divisors is an integer number (4952808).

Almost surely, 2^220563525 is an apocalyptic number.

220563525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220563525 is an abundant number, since it is smaller than the sum of its proper divisors (254906043).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220563525 is a wasteful number, since it uses less digits than its factorization.

220563525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951 (or 1946 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 220563525 is about 14851.3812488940. The cubic root of 220563525 is about 604.1960726604.

The spelling of 220563525 in words is "two hundred twenty million, five hundred sixty-three thousand, five hundred twenty-five".