25281008080 has 40 divisors (see below), whose sum is σ = 58785300000. Its totient is φ = 10111206528.

The previous prime is 25281008069. The next prime is 25281008099. The reversal of 25281008080 is 8080018252.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-4 number, since 4×25281008080⁴ (a number of 43 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1019671 + ... + 1044169.

It is an arithmetic number, because the mean of its divisors is an integer number (1469632500).

Almost surely, 2^25281008080 is an apocalyptic number.

25281008080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25281008080 is an abundant number, since it is smaller than the sum of its proper divisors (33504291920).

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

25281008080 is a wasteful number, since it uses less digits than its factorization.

25281008080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37411 (or 37405 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 34.

The spelling of 25281008080 in words is "twenty-five billion, two hundred eighty-one million, eight thousand, eighty".