125553671 has 2 divisors, whose sum is σ = 125553672. Its totient is φ = 125553670.

The previous prime is 125553647. The next prime is 125553707. The reversal of 125553671 is 176355521.

It is a weak prime.

It is an emirp because it is prime and its reverse (176355521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125553671 - 2⁶ = 125553607 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125553271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62776835 + 62776836.

It is an arithmetic number, because the mean of its divisors is an integer number (62776836).

Almost surely, 2^125553671 is an apocalyptic number.

125553671 is a deficient number, since it is larger than the sum of its proper divisors (1).

125553671 is an equidigital number, since it uses as much as digits as its factorization.

125553671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31500, while the sum is 35.

The square root of 125553671 is about 11205.0734491122. The cubic root of 125553671 is about 500.7371407131.

The spelling of 125553671 in words is "one hundred twenty-five million, five hundred fifty-three thousand, six hundred seventy-one".