25258055513 has 8 divisors (see below), whose sum is σ = 25990515720. Its totient is φ = 24528216960.

The previous prime is 25258055503. The next prime is 25258055573. The reversal of 25258055513 is 31555085252.

It can be written as a sum of positive squares in 4 ways, for example, as 1018056649 + 24239998864 = 31907^2 + 155692^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25258055513 - 2⁴ = 25258055497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25258055503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 635858 + ... + 674411.

It is an arithmetic number, because the mean of its divisors is an integer number (3248814465).

Almost surely, 2^25258055513 is an apocalyptic number.

It is an amenable number.

25258055513 is a deficient number, since it is larger than the sum of its proper divisors (732460207).

25258055513 is a wasteful number, since it uses less digits than its factorization.

25258055513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310827.

The product of its (nonzero) digits is 300000, while the sum is 41.

The spelling of 25258055513 in words is "twenty-five billion, two hundred fifty-eight million, fifty-five thousand, five hundred thirteen".