125825047 has 4 divisors (see below), whose sum is σ = 126743616. Its totient is φ = 124906480.

The previous prime is 125825033. The next prime is 125825053. The reversal of 125825047 is 740528521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125825047 - 2¹¹ = 125822999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125825747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459079 + ... + 459352.

It is an arithmetic number, because the mean of its divisors is an integer number (31685904).

Almost surely, 2^125825047 is an apocalyptic number.

125825047 is a deficient number, since it is larger than the sum of its proper divisors (918569).

125825047 is an equidigital number, since it uses as much as digits as its factorization.

125825047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918568.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 125825047 is about 11217.1764272476. The cubic root of 125825047 is about 501.0976512269.

The spelling of 125825047 in words is "one hundred twenty-five million, eight hundred twenty-five thousand, forty-seven".