125550539 has 2 divisors, whose sum is σ = 125550540. Its totient is φ = 125550538.

The previous prime is 125550533. The next prime is 125550547. The reversal of 125550539 is 935055521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125550539 - 2²⁰ = 124501963 is a prime.

It is equal to p_7139654 and since 125550539 and 7139654 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 125550499 and 125550508.

It is not a weakly prime, because it can be changed into another prime (125550533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62775269 + 62775270.

It is an arithmetic number, because the mean of its divisors is an integer number (62775270).

Almost surely, 2^125550539 is an apocalyptic number.

125550539 is a deficient number, since it is larger than the sum of its proper divisors (1).

125550539 is an equidigital number, since it uses as much as digits as its factorization.

125550539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33750, while the sum is 35.

The square root of 125550539 is about 11204.9336901206. The cubic root of 125550539 is about 500.7329769645.

The spelling of 125550539 in words is "one hundred twenty-five million, five hundred fifty thousand, five hundred thirty-nine".