125005953049 has 2 divisors, whose sum is σ = 125005953050. Its totient is φ = 125005953048.

The previous prime is 125005953029. The next prime is 125005953073. The reversal of 125005953049 is 940359500521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104048179225 + 20957773824 = 322565^2 + 144768^2 .

It is a cyclic number.

It is not a de Polignac number, because 125005953049 - 2¹⁹ = 125005428761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125005952996 and 125005953014.

It is not a weakly prime, because it can be changed into another prime (125005953029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62502976524 + 62502976525.

It is an arithmetic number, because the mean of its divisors is an integer number (62502976525).

Almost surely, 2^125005953049 is an apocalyptic number.

It is an amenable number.

125005953049 is a deficient number, since it is larger than the sum of its proper divisors (1).

125005953049 is an equidigital number, since it uses as much as digits as its factorization.

125005953049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 243000, while the sum is 43.

The spelling of 125005953049 in words is "one hundred twenty-five billion, five million, nine hundred fifty-three thousand, forty-nine".