25831802080 has 48 divisors (see below), whose sum is σ = 69745868640. Its totient is φ = 8856617472.

The previous prime is 25831802057. The next prime is 25831802083. The reversal of 25831802080 is 8020813852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25831802083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11530935 + ... + 11533174.

It is an arithmetic number, because the mean of its divisors is an integer number (1453038930).

Almost surely, 2^25831802080 is an apocalyptic number.

25831802080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25831802080 is an abundant number, since it is smaller than the sum of its proper divisors (43914066560).

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

25831802080 is a wasteful number, since it uses less digits than its factorization.

25831802080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23064131 (or 23064123 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The spelling of 25831802080 in words is "twenty-five billion, eight hundred thirty-one million, eight hundred two thousand, eighty".