125749925 has 18 divisors (see below), whose sum is σ = 181389618. Its totient is φ = 86227680.

The previous prime is 125749889. The next prime is 125749937. The reversal of 125749925 is 529947521.

It can be written as a sum of positive squares in 3 ways, for example, as 11195716 + 114554209 = 3346^2 + 10703^2 .

It is not a de Polignac number, because 125749925 - 2²⁶ = 58641061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 50102 + ... + 52551.

It is an arithmetic number, because the mean of its divisors is an integer number (10077201).

Almost surely, 2^125749925 is an apocalyptic number.

It is an amenable number.

125749925 is a deficient number, since it is larger than the sum of its proper divisors (55639693).

125749925 is a wasteful number, since it uses less digits than its factorization.

125749925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102677 (or 102665 counting only the distinct ones).

The product of its digits is 226800, while the sum is 44.

The square root of 125749925 is about 11213.8274019177. The cubic root of 125749925 is about 500.9979070381.

The spelling of 125749925 in words is "one hundred twenty-five million, seven hundred forty-nine thousand, nine hundred twenty-five".