25745420780352 has 392 divisors, whose sum is σ = 94274248002816. Its totient is φ = 6789999965184.

The previous prime is 25745420780311. The next prime is 25745420780383. The reversal of 25745420780352 is 25308702454752.

25745420780352 is a `hidden beast` number, since 2 + 5 + 7 + 4 + 5 + 4 + 207 + 80 + 352 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1213753 + ... + 7277639.

Almost surely, 2^{25745420780352} 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 25745420780352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47137124001408).

25745420780352 is an abundant number, since it is smaller than the sum of its proper divisors (68528827222464).

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

25745420780352 is an equidigital number, since it uses as much as digits as its factorization.

25745420780352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6063937 (or 6063912 counting only the distinct ones).

The product of its (nonzero) digits is 18816000, while the sum is 54.

The spelling of 25745420780352 in words is "twenty-five trillion, seven hundred forty-five billion, four hundred twenty million, seven hundred eighty thousand, three hundred fifty-two".