25306208982 has 48 divisors (see below), whose sum is σ = 57127928832. Its totient is φ = 8086981680.

The previous prime is 25306208911. The next prime is 25306208989. The reversal of 25306208982 is 28980260352.

It is a happy number.

25306208982 is a `hidden beast` number, since 2 + 530 + 6 + 20 + 8 + 98 + 2 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25306208989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152218 + ... + 271629.

It is an arithmetic number, because the mean of its divisors is an integer number (1190165184).

Almost surely, 2^25306208982 is an apocalyptic number.

25306208982 is an abundant number, since it is smaller than the sum of its proper divisors (31821719850).

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

25306208982 is a wasteful number, since it uses less digits than its factorization.

25306208982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423993 (or 423990 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 25306208982 in words is "twenty-five billion, three hundred six million, two hundred eight thousand, nine hundred eighty-two".