125564759 has 2 divisors, whose sum is σ = 125564760. Its totient is φ = 125564758.

The previous prime is 125564753. The next prime is 125564819. The reversal of 125564759 is 957465521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125564759 - 2⁴ = 125564743 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125564753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62782379 + 62782380.

It is an arithmetic number, because the mean of its divisors is an integer number (62782380).

Almost surely, 2^125564759 is an apocalyptic number.

125564759 is a deficient number, since it is larger than the sum of its proper divisors (1).

125564759 is an equidigital number, since it uses as much as digits as its factorization.

125564759 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378000, while the sum is 44.

The square root of 125564759 is about 11205.5682140621. The cubic root of 125564759 is about 500.7518807838.

The spelling of 125564759 in words is "one hundred twenty-five million, five hundred sixty-four thousand, seven hundred fifty-nine".