25055025280 has 64 divisors (see below), whose sum is σ = 60740902080. Its totient is φ = 9880837120.

The previous prime is 25055025239. The next prime is 25055025283. The reversal of 25055025280 is 8252055052.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (25055025283) 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, 230254 + ... + 321133.

It is an arithmetic number, because the mean of its divisors is an integer number (949076595).

Almost surely, 2^25055025280 is an apocalyptic number.

25055025280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25055025280 is an abundant number, since it is smaller than the sum of its proper divisors (35685876800).

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

25055025280 is an equidigital number, since it uses as much as digits as its factorization.

25055025280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551477 (or 551465 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

The spelling of 25055025280 in words is "twenty-five billion, fifty-five million, twenty-five thousand, two hundred eighty".