125023220155573 has 2 divisors, whose sum is σ = 125023220155574. Its totient is φ = 125023220155572.

The previous prime is 125023220155523. The next prime is 125023220155633. The reversal of 125023220155573 is 375551022320521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124634739704049 + 388480451524 = 11163993^2 + 623282^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125023220155573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125023220155523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62511610077786 + 62511610077787.

It is an arithmetic number, because the mean of its divisors is an integer number (62511610077787).

Almost surely, 2^{125023220155573} is an apocalyptic number.

It is an amenable number.

125023220155573 is a deficient number, since it is larger than the sum of its proper divisors (1).

125023220155573 is an equidigital number, since it uses as much as digits as its factorization.

125023220155573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630000, while the sum is 43.

The spelling of 125023220155573 in words is "one hundred twenty-five trillion, twenty-three billion, two hundred twenty million, one hundred fifty-five thousand, five hundred seventy-three".