25125012501389 has 8 divisors (see below), whose sum is σ = 25388699107128. Its totient is φ = 24861421117440.

The previous prime is 25125012501377. The next prime is 25125012501509. The reversal of 25125012501389 is 98310521052152.

It can be written as a sum of positive squares in 4 ways, for example, as 9655406509225 + 15469605992164 = 3107315^2 + 3933142^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25125012501389 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 (25125012501089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23274902 + ... + 24330455.

It is an arithmetic number, because the mean of its divisors is an integer number (3173587388391).

Almost surely, 2^{25125012501389} is an apocalyptic number.

It is an amenable number.

25125012501389 is a deficient number, since it is larger than the sum of its proper divisors (263686605739).

25125012501389 is an equidigital number, since it uses as much as digits as its factorization.

25125012501389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47610895.

The product of its (nonzero) digits is 216000, while the sum is 44.

The spelling of 25125012501389 in words is "twenty-five trillion, one hundred twenty-five billion, twelve million, five hundred one thousand, three hundred eighty-nine".