125579525 has 12 divisors (see below), whose sum is σ = 158658372. Its totient is φ = 98567040.

The previous prime is 125579521. The next prime is 125579533. The reversal of 125579525 is 525975521.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 6180196 + 119399329 = 2486^2 + 10927^2 .

It is not a de Polignac number, because 125579525 - 2² = 125579521 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125579521) 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 11 ways as a sum of consecutive naturals, for example, 46064 + ... + 48713.

It is an arithmetic number, because the mean of its divisors is an integer number (13221531).

Almost surely, 2^125579525 is an apocalyptic number.

It is an amenable number.

125579525 is a deficient number, since it is larger than the sum of its proper divisors (33078847).

125579525 is an equidigital number, since it uses as much as digits as its factorization.

125579525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94840 (or 94835 counting only the distinct ones).

The product of its digits is 157500, while the sum is 41.

The square root of 125579525 is about 11206.2270635571. The cubic root of 125579525 is about 500.7715089356.

The spelling of 125579525 in words is "one hundred twenty-five million, five hundred seventy-nine thousand, five hundred twenty-five".