125023220155499 has 2 divisors, whose sum is σ = 125023220155500. Its totient is φ = 125023220155498.

The previous prime is 125023220155489. The next prime is 125023220155523. The reversal of 125023220155499 is 994551022320521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125023220155499 is a prime.

It is not a weakly prime, because it can be changed into another prime (125023220155489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62511610077749 + 62511610077750.

It is an arithmetic number, because the mean of its divisors is an integer number (62511610077750).

Almost surely, 2^{125023220155499} is an apocalyptic number.

125023220155499 is a deficient number, since it is larger than the sum of its proper divisors (1).

125023220155499 is an equidigital number, since it uses as much as digits as its factorization.

125023220155499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944000, while the sum is 50.

The spelling of 125023220155499 in words is "one hundred twenty-five trillion, twenty-three billion, two hundred twenty million, one hundred fifty-five thousand, four hundred ninety-nine".