125982577 has 6 divisors (see below), whose sum is σ = 146551218. Its totient is φ = 107985024.

The previous prime is 125982551. The next prime is 125982599. The reversal of 125982577 is 775289521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 76195441 + 49787136 = 8729^2 + 7056^2 .

It is not a de Polignac number, because 125982577 - 2¹¹ = 125980529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125982547) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1285488 + ... + 1285585.

It is an arithmetic number, because the mean of its divisors is an integer number (24425203).

Almost surely, 2^125982577 is an apocalyptic number.

It is an amenable number.

125982577 is a deficient number, since it is larger than the sum of its proper divisors (20568641).

125982577 is an equidigital number, since it uses as much as digits as its factorization.

125982577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571087 (or 2571080 counting only the distinct ones).

The product of its digits is 352800, while the sum is 46.

The square root of 125982577 is about 11224.1960513883. The cubic root of 125982577 is about 501.3066848414.

The spelling of 125982577 in words is "one hundred twenty-five million, nine hundred eighty-two thousand, five hundred seventy-seven".