2528280278025 has 12 divisors (see below), whose sum is σ = 4180090059792. Its totient is φ = 1348416148240.

The previous prime is 2528280278023. The next prime is 2528280278039. The reversal of 2528280278025 is 5208720828252.

It is not a de Polignac number, because 2528280278025 - 2¹ = 2528280278023 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2528280278023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16855201779 + ... + 16855201928.

It is an arithmetic number, because the mean of its divisors is an integer number (348340838316).

Almost surely, 2^{2528280278025} is an apocalyptic number.

2528280278025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2528280278025 is a deficient number, since it is larger than the sum of its proper divisors (1651809781767).

2528280278025 is a wasteful number, since it uses less digits than its factorization.

2528280278025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33710403720 (or 33710403715 counting only the distinct ones).

The product of its (nonzero) digits is 2867200, while the sum is 51.

The spelling of 2528280278025 in words is "two trillion, five hundred twenty-eight billion, two hundred eighty million, two hundred seventy-eight thousand, twenty-five".