125625589 has 2 divisors, whose sum is σ = 125625590. Its totient is φ = 125625588.

The previous prime is 125625581. The next prime is 125625607. The reversal of 125625589 is 985526521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115734564 + 9891025 = 10758^2 + 3145^2 .

It is a cyclic number.

It is not a de Polignac number, because 125625589 - 2³ = 125625581 is a prime.

It is a super-2 number, since 2×125625589² = 31563577223193842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125625581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62812794 + 62812795.

It is an arithmetic number, because the mean of its divisors is an integer number (62812795).

Almost surely, 2^125625589 is an apocalyptic number.

It is an amenable number.

125625589 is a deficient number, since it is larger than the sum of its proper divisors (1).

125625589 is an equidigital number, since it uses as much as digits as its factorization.

125625589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216000, while the sum is 43.

The square root of 125625589 is about 11208.2821609736. The cubic root of 125625589 is about 500.8327310148.

The spelling of 125625589 in words is "one hundred twenty-five million, six hundred twenty-five thousand, five hundred eighty-nine".