25406233203312 has 180 divisors, whose sum is σ = 77062170875040. Its totient is φ = 7810206962688.

The previous prime is 25406233203269. The next prime is 25406233203383. The reversal of 25406233203312 is 21330233260452.

It is a happy number.

25406233203312 is a `hidden beast` number, since 2 + 5 + 4 + 0 + 6 + 2 + 332 + 0 + 3 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 26369364 + ... + 27315852.

It is an arithmetic number, because the mean of its divisors is an integer number (428123171528).

Almost surely, 2^{25406233203312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25406233203312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38531085437520).

25406233203312 is an abundant number, since it is smaller than the sum of its proper divisors (51655937671728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25406233203312 is a wasteful number, since it uses less digits than its factorization.

25406233203312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947632 (or 947610 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 36.

Adding to 25406233203312 its reverse (21330233260452), we get a palindrome (46736466463764).

The spelling of 25406233203312 in words is "twenty-five trillion, four hundred six billion, two hundred thirty-three million, two hundred three thousand, three hundred twelve".