25405014350213 has 4 divisors (see below), whose sum is σ = 25416880309548. Its totient is φ = 25393148390880.

The previous prime is 25405014350207. The next prime is 25405014350267. The reversal of 25405014350213 is 31205341050452.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23659439625409 + 1745574724804 = 4864097^2 + 1321202^2 .

It is a cyclic number.

It is not a de Polignac number, because 25405014350213 - 2¹⁰ = 25405014349189 is a prime.

It is a super-2 number, since 2×25405014350213² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25405014350713) 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, 5932976456 + ... + 5932980737.

It is an arithmetic number, because the mean of its divisors is an integer number (6354220077387).

Almost surely, 2^{25405014350213} is an apocalyptic number.

It is an amenable number.

25405014350213 is a deficient number, since it is larger than the sum of its proper divisors (11865959335).

25405014350213 is a wasteful number, since it uses less digits than its factorization.

25405014350213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11865959334.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 25405014350213 in words is "twenty-five trillion, four hundred five billion, fourteen million, three hundred fifty thousand, two hundred thirteen".