125456266259 has 2 divisors, whose sum is σ = 125456266260. Its totient is φ = 125456266258.

The previous prime is 125456266217. The next prime is 125456266319. The reversal of 125456266259 is 952662654521.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (952662654521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125456266259 - 2³² = 121161298963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125456266259.

It is not a weakly prime, because it can be changed into another prime (125456266759) 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, 62728133129 + 62728133130.

It is an arithmetic number, because the mean of its divisors is an integer number (62728133130).

Almost surely, 2^125456266259 is an apocalyptic number.

125456266259 is a deficient number, since it is larger than the sum of its proper divisors (1).

125456266259 is an equidigital number, since it uses as much as digits as its factorization.

125456266259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776000, while the sum is 53.

The spelling of 125456266259 in words is "one hundred twenty-five billion, four hundred fifty-six million, two hundred sixty-six thousand, two hundred fifty-nine".