125535559 has 2 divisors, whose sum is σ = 125535560. Its totient is φ = 125535558.

The previous prime is 125535551. The next prime is 125535583. The reversal of 125535559 is 955535521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125535559 - 2³ = 125535551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125535551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62767779 + 62767780.

It is an arithmetic number, because the mean of its divisors is an integer number (62767780).

Almost surely, 2^125535559 is an apocalyptic number.

125535559 is a deficient number, since it is larger than the sum of its proper divisors (1).

125535559 is an equidigital number, since it uses as much as digits as its factorization.

125535559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168750, while the sum is 40.

The square root of 125535559 is about 11204.2652146404. The cubic root of 125535559 is about 500.7130612705.

The spelling of 125535559 in words is "one hundred twenty-five million, five hundred thirty-five thousand, five hundred fifty-nine".