125252515 has 16 divisors (see below), whose sum is σ = 162152928. Its totient is φ = 92525056.

The previous prime is 125252513. The next prime is 125252521. The reversal of 125252515 is 515252521.

It is a cyclic number.

It is not a de Polignac number, because 125252515 - 2¹ = 125252513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125252513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9397 + ... + 18406.

It is an arithmetic number, because the mean of its divisors is an integer number (10134558).

Almost surely, 2^125252515 is an apocalyptic number.

125252515 is a deficient number, since it is larger than the sum of its proper divisors (36900413).

125252515 is a wasteful number, since it uses less digits than its factorization.

125252515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27878.

The product of its digits is 5000, while the sum is 28.

The square root of 125252515 is about 11191.6270041491. The cubic root of 125252515 is about 500.3364602049.

The spelling of 125252515 in words is "one hundred twenty-five million, two hundred fifty-two thousand, five hundred fifteen".