125777508 has 24 divisors (see below), whose sum is σ = 295626912. Its totient is φ = 41619264.

The previous prime is 125777507. The next prime is 125777513. The reversal of 125777508 is 805777521.

It is a self number, because there is not a number n which added to its sum of digits gives 125777508.

It is not an unprimeable number, because it can be changed into a prime (125777503) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 36610 + ... + 39897.

It is an arithmetic number, because the mean of its divisors is an integer number (12317788).

Almost surely, 2^125777508 is an apocalyptic number.

It is an amenable number.

125777508 is an abundant number, since it is smaller than the sum of its proper divisors (169849404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125777508 is a wasteful number, since it uses less digits than its factorization.

125777508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76651 (or 76649 counting only the distinct ones).

The product of its (nonzero) digits is 137200, while the sum is 42.

The square root of 125777508 is about 11215.0572000325. The cubic root of 125777508 is about 501.0345353303.

The spelling of 125777508 in words is "one hundred twenty-five million, seven hundred seventy-seven thousand, five hundred eight".