220996525 has 12 divisors (see below), whose sum is σ = 274362400. Its totient is φ = 176586480.

The previous prime is 220996513. The next prime is 220996537. The reversal of 220996525 is 525699022.

220996525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (220996513) and next prime (220996537).

It is not a de Polignac number, because 220996525 - 2⁵ = 220996493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18166 + ... + 27784.

Almost surely, 2^220996525 is an apocalyptic number.

220996525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220996525 is a deficient number, since it is larger than the sum of its proper divisors (53365875).

220996525 is an equidigital number, since it uses as much as digits as its factorization.

220996525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10548 (or 10543 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 220996525 is about 14865.9518699611. The cubic root of 220996525 is about 604.5911907077.

The spelling of 220996525 in words is "two hundred twenty million, nine hundred ninety-six thousand, five hundred twenty-five".