125528563 has 2 divisors, whose sum is σ = 125528564. Its totient is φ = 125528562.

The previous prime is 125528521. The next prime is 125528591. The reversal of 125528563 is 365825521.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (365825521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125528563 is a prime.

It is not a weakly prime, because it can be changed into another prime (125528063) 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 as a sum of consecutive naturals, namely, 62764281 + 62764282.

It is an arithmetic number, because the mean of its divisors is an integer number (62764282).

Almost surely, 2^125528563 is an apocalyptic number.

125528563 is a deficient number, since it is larger than the sum of its proper divisors (1).

125528563 is an equidigital number, since it uses as much as digits as its factorization.

125528563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 37.

The square root of 125528563 is about 11203.9530077558. The cubic root of 125528563 is about 500.7037596466.

It can be divided in two parts, 12552 and 8563, that added together give a triangular number (21115 = T₂₀₅).

The spelling of 125528563 in words is "one hundred twenty-five million, five hundred twenty-eight thousand, five hundred sixty-three".