125550215 has 24 divisors (see below), whose sum is σ = 180021408. Its totient is φ = 82336320.

The previous prime is 125550209. The next prime is 125550259. The reversal of 125550215 is 512055521.

It is not a de Polignac number, because 125550215 - 2⁸ = 125549959 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 15125 + ... + 21905.

It is an arithmetic number, because the mean of its divisors is an integer number (7500892).

Almost surely, 2^125550215 is an apocalyptic number.

125550215 is a deficient number, since it is larger than the sum of its proper divisors (54471193).

125550215 is an equidigital number, since it uses as much as digits as its factorization.

125550215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6839 (or 6816 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 125550215 is about 11204.9192321944. The cubic root of 125550215 is about 500.7325462279.

The spelling of 125550215 in words is "one hundred twenty-five million, five hundred fifty thousand, two hundred fifteen".