125958563 has 4 divisors (see below), whose sum is σ = 126119400. Its totient is φ = 125797728.

The previous prime is 125958551. The next prime is 125958587. The reversal of 125958563 is 365859521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125958563 - 2⁸ = 125958307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125958533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79238 + ... + 80811.

It is an arithmetic number, because the mean of its divisors is an integer number (31529850).

Almost surely, 2^125958563 is an apocalyptic number.

125958563 is a deficient number, since it is larger than the sum of its proper divisors (160837).

125958563 is an equidigital number, since it uses as much as digits as its factorization.

125958563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160836.

The product of its digits is 324000, while the sum is 44.

The square root of 125958563 is about 11223.1262578659. The cubic root of 125958563 is about 501.2748308501.

The spelling of 125958563 in words is "one hundred twenty-five million, nine hundred fifty-eight thousand, five hundred sixty-three".