25612318113213 has 32 divisors (see below), whose sum is σ = 37714991795712. Its totient is φ = 15362068147200.

The previous prime is 25612318113203. The next prime is 25612318113241. The reversal of 25612318113213 is 31231181321652.

It is not a de Polignac number, because 25612318113213 - 2¹⁴ = 25612318096829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25612318113203) 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 31 ways as a sum of consecutive naturals, for example, 28547658 + ... + 29431163.

It is an arithmetic number, because the mean of its divisors is an integer number (1178593493616).

Almost surely, 2^{25612318113213} is an apocalyptic number.

It is an amenable number.

25612318113213 is a deficient number, since it is larger than the sum of its proper divisors (12102673682499).

25612318113213 is a wasteful number, since it uses less digits than its factorization.

25612318113213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57979125.

The product of its digits is 51840, while the sum is 39.

Adding to 25612318113213 its reverse (31231181321652), we get a palindrome (56843499434865).

The spelling of 25612318113213 in words is "twenty-five trillion, six hundred twelve billion, three hundred eighteen million, one hundred thirteen thousand, two hundred thirteen".