125732596550399 has 4 divisors (see below), whose sum is σ = 126134298137136. Its totient is φ = 125330894963664.

The previous prime is 125732596550389. The next prime is 125732596550441. The reversal of 125732596550399 is 993055695237521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125732596550399 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 (125732596550339) 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, 200850792899 + ... + 200850793524.

It is an arithmetic number, because the mean of its divisors is an integer number (31533574534284).

Almost surely, 2^{125732596550399} is an apocalyptic number.

125732596550399 is a deficient number, since it is larger than the sum of its proper divisors (401701586737).

125732596550399 is an equidigital number, since it uses as much as digits as its factorization.

125732596550399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401701586736.

The product of its (nonzero) digits is 688905000, while the sum is 71.

The spelling of 125732596550399 in words is "one hundred twenty-five trillion, seven hundred thirty-two billion, five hundred ninety-six million, five hundred fifty thousand, three hundred ninety-nine".