125633502019 has 2 divisors, whose sum is σ = 125633502020. Its totient is φ = 125633502018.

The previous prime is 125633502013. The next prime is 125633502067. The reversal of 125633502019 is 910205336521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125633502019 is a prime.

It is a super-2 number, since 2×125633502019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125633502013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62816751009 + 62816751010.

It is an arithmetic number, because the mean of its divisors is an integer number (62816751010).

Almost surely, 2^125633502019 is an apocalyptic number.

125633502019 is a deficient number, since it is larger than the sum of its proper divisors (1).

125633502019 is an equidigital number, since it uses as much as digits as its factorization.

125633502019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600, while the sum is 37.

The spelling of 125633502019 in words is "one hundred twenty-five billion, six hundred thirty-three million, five hundred two thousand, nineteen".