125528557 has 16 divisors (see below), whose sum is σ = 158062464. Its totient is φ = 96840000.

The previous prime is 125528521. The next prime is 125528563. The reversal of 125528557 is 755825521.

It is a cyclic number.

It is not a de Polignac number, because 125528557 - 2²³ = 117139949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125528257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294 + ... + 15847.

It is an arithmetic number, because the mean of its divisors is an integer number (9878904).

Almost surely, 2^125528557 is an apocalyptic number.

It is an amenable number.

125528557 is a deficient number, since it is larger than the sum of its proper divisors (32533907).

125528557 is a wasteful number, since it uses less digits than its factorization.

125528557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16260.

The product of its digits is 140000, while the sum is 40.

The square root of 125528557 is about 11203.9527399931. The cubic root of 125528557 is about 500.7037516691.

The spelling of 125528557 in words is "one hundred twenty-five million, five hundred twenty-eight thousand, five hundred fifty-seven".