125975775 has 24 divisors (see below), whose sum is σ = 209696400. Its totient is φ = 66730240.

The previous prime is 125975771. The next prime is 125975777. The reversal of 125975775 is 577579521.

It is not a de Polignac number, because 125975775 - 2² = 125975771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125975771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5539 + ... + 16811.

It is an arithmetic number, because the mean of its divisors is an integer number (8737350).

Almost surely, 2^125975775 is an apocalyptic number.

125975775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125975775 is a deficient number, since it is larger than the sum of its proper divisors (83720625).

125975775 is a wasteful number, since it uses less digits than its factorization.

125975775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11435 (or 11430 counting only the distinct ones).

The product of its digits is 771750, while the sum is 48.

The square root of 125975775 is about 11223.8930411867. The cubic root of 125975775 is about 501.2976625635.

The spelling of 125975775 in words is "one hundred twenty-five million, nine hundred seventy-five thousand, seven hundred seventy-five".