125515514 has 16 divisors (see below), whose sum is σ = 194178600. Its totient is φ = 60810240.

The previous prime is 125515513. The next prime is 125515517. The reversal of 125515514 is 415515521.

It can be written as a sum of positive squares in 4 ways, for example, as 32296489 + 93219025 = 5683^2 + 9655^2 .

It is not an unprimeable number, because it can be changed into a prime (125515513) 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 7 ways as a sum of consecutive naturals, for example, 7082 + ... + 17354.

Almost surely, 2^125515514 is an apocalyptic number.

125515514 is a deficient number, since it is larger than the sum of its proper divisors (68663086).

125515514 is a wasteful number, since it uses less digits than its factorization.

125515514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10465.

The product of its digits is 5000, while the sum is 29.

The square root of 125515514 is about 11203.3706535132. The cubic root of 125515514 is about 500.6864092535.

The spelling of 125515514 in words is "one hundred twenty-five million, five hundred fifteen thousand, five hundred fourteen".