25355602435213 has 4 divisors (see below), whose sum is σ = 26690107826560. Its totient is φ = 24021097043868.

The previous prime is 25355602435139. The next prime is 25355602435223. The reversal of 25355602435213 is 31253420655352.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25355602435213 - 2¹⁷ = 25355602304141 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 (25355602435223) 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, 667252695645 + ... + 667252695682.

It is an arithmetic number, because the mean of its divisors is an integer number (6672526956640).

Almost surely, 2^{25355602435213} is an apocalyptic number.

It is an amenable number.

25355602435213 is a deficient number, since it is larger than the sum of its proper divisors (1334505391347).

25355602435213 is a wasteful number, since it uses less digits than its factorization.

25355602435213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334505391346.

The product of its (nonzero) digits is 3240000, while the sum is 46.

The spelling of 25355602435213 in words is "twenty-five trillion, three hundred fifty-five billion, six hundred two million, four hundred thirty-five thousand, two hundred thirteen".