125055115 has 4 divisors (see below), whose sum is σ = 150066144. Its totient is φ = 100044088.

The previous prime is 125055113. The next prime is 125055121. The reversal of 125055115 is 511550521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 511550521 = 23 ⋅22241327.

It is a cyclic number.

It is not a de Polignac number, because 125055115 - 2¹ = 125055113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125055115.

It is not an unprimeable number, because it can be changed into a prime (125055113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12505507 + ... + 12505516.

It is an arithmetic number, because the mean of its divisors is an integer number (37516536).

Almost surely, 2^125055115 is an apocalyptic number.

125055115 is a deficient number, since it is larger than the sum of its proper divisors (25011029).

125055115 is an equidigital number, since it uses as much as digits as its factorization.

125055115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25011028.

The product of its (nonzero) digits is 1250, while the sum is 25.

The square root of 125055115 is about 11182.8044335936. The cubic root of 125055115 is about 500.0734758687.

It can be divided in two parts, 1250 and 55115, that added together give a palindrome (56365).

The spelling of 125055115 in words is "one hundred twenty-five million, fifty-five thousand, one hundred fifteen".