25445270080 has 28 divisors (see below), whose sum is σ = 60591550140. Its totient is φ = 10178107904.

The previous prime is 25445270069. The next prime is 25445270089. The reversal of 25445270080 is 8007254452.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11991126016 + 13454144064 = 109504^2 + 115992^2 .

It is not an unprimeable number, because it can be changed into a prime (25445270089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39757915 + ... + 39758554.

Almost surely, 2^25445270080 is an apocalyptic number.

25445270080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25445270080 is an abundant number, since it is smaller than the sum of its proper divisors (35146280060).

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

25445270080 is an equidigital number, since it uses as much as digits as its factorization.

25445270080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79516486 (or 79516476 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 37.

The spelling of 25445270080 in words is "twenty-five billion, four hundred forty-five million, two hundred seventy thousand, eighty".