125577523 has 2 divisors, whose sum is σ = 125577524. Its totient is φ = 125577522.

The previous prime is 125577509. The next prime is 125577533. The reversal of 125577523 is 325775521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125577523 is a prime.

It is not a weakly prime, because it can be changed into another prime (125577533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62788761 + 62788762.

It is an arithmetic number, because the mean of its divisors is an integer number (62788762).

Almost surely, 2^125577523 is an apocalyptic number.

125577523 is a deficient number, since it is larger than the sum of its proper divisors (1).

125577523 is an equidigital number, since it uses as much as digits as its factorization.

125577523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73500, while the sum is 37.

The square root of 125577523 is about 11206.1377378649. The cubic root of 125577523 is about 500.7688478068.

The spelling of 125577523 in words is "one hundred twenty-five million, five hundred seventy-seven thousand, five hundred twenty-three".