25010409013 has 12 divisors (see below), whose sum is σ = 25914322980. Its totient is φ = 24137031296.

The previous prime is 25010408971. The next prime is 25010409031. The reversal of 25010409013 is 31090401052.

It can be written as a sum of positive squares in 6 ways, for example, as 421973764 + 24588435249 = 20542^2 + 156807^2 .

It is a de Polignac number, because none of the positive numbers 2^k-25010409013 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 (25013409013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2330103 + ... + 2340811.

It is an arithmetic number, because the mean of its divisors is an integer number (2159526915).

Almost surely, 2^25010409013 is an apocalyptic number.

It is an amenable number.

25010409013 is a deficient number, since it is larger than the sum of its proper divisors (903913967).

25010409013 is a wasteful number, since it uses less digits than its factorization.

25010409013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13544 (or 13515 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The spelling of 25010409013 in words is "twenty-five billion, ten million, four hundred nine thousand, thirteen".