125510045447 has 2 divisors, whose sum is σ = 125510045448. Its totient is φ = 125510045446.

The previous prime is 125510045411. The next prime is 125510045489. The reversal of 125510045447 is 744540015521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125510045447 - 2²⁴ = 125493268231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125510045447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125510045497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62755022723 + 62755022724.

It is an arithmetic number, because the mean of its divisors is an integer number (62755022724).

Almost surely, 2^125510045447 is an apocalyptic number.

125510045447 is a deficient number, since it is larger than the sum of its proper divisors (1).

125510045447 is an equidigital number, since it uses as much as digits as its factorization.

125510045447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112000, while the sum is 38.

The spelling of 125510045447 in words is "one hundred twenty-five billion, five hundred ten million, forty-five thousand, four hundred forty-seven".