125500220 has 48 divisors (see below), whose sum is σ = 268053408. Its totient is φ = 49351680.

The previous prime is 125500217. The next prime is 125500223. The reversal of 125500220 is 22005521.

It is an interprime number because it is at equal distance from previous prime (125500217) and next prime (125500223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125500223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 446480 + ... + 446760.

It is an arithmetic number, because the mean of its divisors is an integer number (5584446).

Almost surely, 2^125500220 is an apocalyptic number.

125500220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125500220 is an abundant number, since it is smaller than the sum of its proper divisors (142553188).

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

125500220 is a wasteful number, since it uses less digits than its factorization.

125500220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 125500220 is about 11202.6880702803. The cubic root of 125500220 is about 500.6660723014. Note that the first 3 decimals are identical.

Adding to 125500220 its reverse (22005521), we get a palindrome (147505741).

The spelling of 125500220 in words is "one hundred twenty-five million, five hundred thousand, two hundred twenty".