125504577 has 12 divisors (see below), whose sum is σ = 197764944. Its totient is φ = 76063320.

The previous prime is 125504569. The next prime is 125504609. The reversal of 125504577 is 775405521.

It is not a de Polignac number, because 125504577 - 2³ = 125504569 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (125500577) 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, 633763 + ... + 633960.

It is an arithmetic number, because the mean of its divisors is an integer number (16480412).

Almost surely, 2^125504577 is an apocalyptic number.

It is an amenable number.

125504577 is a deficient number, since it is larger than the sum of its proper divisors (72260367).

125504577 is a wasteful number, since it uses less digits than its factorization.

125504577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267740 (or 1267737 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 36.

The square root of 125504577 is about 11202.8825308489. The cubic root of 125504577 is about 500.6718661208.

The spelling of 125504577 in words is "one hundred twenty-five million, five hundred four thousand, five hundred seventy-seven".