25280050280 has 16 divisors (see below), whose sum is σ = 56880113220. Its totient is φ = 10112020096.

The previous prime is 25280050247. The next prime is 25280050319. The reversal of 25280050280 is 8205008252.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25211723524 + 68326756 = 158782^2 + 8266^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 316000589 + ... + 316000668.

Almost surely, 2^25280050280 is an apocalyptic number.

25280050280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25280050280 is an abundant number, since it is smaller than the sum of its proper divisors (31600062940).

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

25280050280 is a wasteful number, since it uses less digits than its factorization.

25280050280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632001268 (or 632001264 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The spelling of 25280050280 in words is "twenty-five billion, two hundred eighty million, fifty thousand, two hundred eighty".