220607525 has 6 divisors (see below), whose sum is σ = 273553362. Its totient is φ = 176486000.

The previous prime is 220607479. The next prime is 220607567. The reversal of 220607525 is 525706022.

It can be written as a sum of positive squares in 3 ways, for example, as 55562116 + 165045409 = 7454^2 + 12847^2 .

It is not a de Polignac number, because 220607525 - 2⁸ = 220607269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4412126 + ... + 4412175.

It is an arithmetic number, because the mean of its divisors is an integer number (45592227).

Almost surely, 2^220607525 is an apocalyptic number.

220607525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220607525 is a deficient number, since it is larger than the sum of its proper divisors (52945837).

220607525 is an equidigital number, since it uses as much as digits as its factorization.

220607525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8824311 (or 8824306 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 220607525 is about 14852.8625187201. The cubic root of 220607525 is about 604.2362468153.

The spelling of 220607525 in words is "two hundred twenty million, six hundred seven thousand, five hundred twenty-five".