25825595796 has 864 divisors, whose sum is σ = 97164820480. Its totient is φ = 5819869440.

The previous prime is 25825595771. The next prime is 25825595801. The reversal of 25825595796 is 69759552852.

25825595796 is a `hidden beast` number, since 2 + 5 + 8 + 2 + 5 + 59 + 579 + 6 = 666.

It is a super-2 number, since 2×25825595796² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 203351085 + ... + 203351211.

Almost surely, 2^25825595796 is an apocalyptic number.

25825595796 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25825595796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48582410240).

25825595796 is an abundant number, since it is smaller than the sum of its proper divisors (71339224684).

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

25825595796 is a wasteful number, since it uses less digits than its factorization.

25825595796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 182 counting only the distinct ones).

The product of its digits is 68040000, while the sum is 63.

The spelling of 25825595796 in words is "twenty-five billion, eight hundred twenty-five million, five hundred ninety-five thousand, seven hundred ninety-six".