25780228248 has 32 divisors (see below), whose sum is σ = 64470542400. Its totient is φ = 8590746528.

The previous prime is 25780228241. The next prime is 25780228259. The reversal of 25780228248 is 84282208752.

It is a junction number, because it is equal to n+sod(n) for n = 25780228197 and 25780228206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25780228241) 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, 86586 + ... + 243017.

It is an arithmetic number, because the mean of its divisors is an integer number (2014704450).

Almost surely, 2^25780228248 is an apocalyptic number.

It is an amenable number.

25780228248 is an abundant number, since it is smaller than the sum of its proper divisors (38690314152).

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

25780228248 is a wasteful number, since it uses less digits than its factorization.

25780228248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332871 (or 332867 counting only the distinct ones).

The product of its (nonzero) digits is 1146880, while the sum is 48.

The spelling of 25780228248 in words is "twenty-five billion, seven hundred eighty million, two hundred twenty-eight thousand, two hundred forty-eight".