220551125 has 16 divisors (see below), whose sum is σ = 275970240. Its totient is φ = 175978000.

The previous prime is 220551109. The next prime is 220551127. The reversal of 220551125 is 521155022.

It is not a de Polignac number, because 220551125 - 2⁴ = 220551109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220551125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220551127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50270 + ... + 54480.

It is an arithmetic number, because the mean of its divisors is an integer number (17248140).

Almost surely, 2^220551125 is an apocalyptic number.

220551125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220551125 is a deficient number, since it is larger than the sum of its proper divisors (55419115).

220551125 is an equidigital number, since it uses as much as digits as its factorization.

220551125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4645 (or 4635 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 220551125 is about 14850.9637734391. The cubic root of 220551125 is about 604.1847498881.

The spelling of 220551125 in words is "two hundred twenty million, five hundred fifty-one thousand, one hundred twenty-five".