125858563 has 2 divisors, whose sum is σ = 125858564. Its totient is φ = 125858562.

The previous prime is 125858539. The next prime is 125858569. The reversal of 125858563 is 365858521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125858563 - 2²⁵ = 92304131 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (125858569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62929281 + 62929282.

It is an arithmetic number, because the mean of its divisors is an integer number (62929282).

Almost surely, 2^125858563 is an apocalyptic number.

125858563 is a deficient number, since it is larger than the sum of its proper divisors (1).

125858563 is an equidigital number, since it uses as much as digits as its factorization.

125858563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288000, while the sum is 43.

The square root of 125858563 is about 11218.6702866249. The cubic root of 125858563 is about 501.1421397139.

The spelling of 125858563 in words is "one hundred twenty-five million, eight hundred fifty-eight thousand, five hundred sixty-three".