25758026280 has 192 divisors, whose sum is σ = 95792336640. Its totient is φ = 5880185856.

The previous prime is 25758026279. The next prime is 25758026309. The reversal of 25758026280 is 8262085752.

25758026280 is a `hidden beast` number, since 2 + 5 + 7 + 580 + 2 + 62 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2153677 + ... + 2165603.

It is an arithmetic number, because the mean of its divisors is an integer number (498918420).

Almost surely, 2^25758026280 is an apocalyptic number.

25758026280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25758026280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47896168320).

25758026280 is an abundant number, since it is smaller than the sum of its proper divisors (70034310360).

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

25758026280 is a wasteful number, since it uses less digits than its factorization.

25758026280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12808 (or 12801 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 25758026280 in words is "twenty-five billion, seven hundred fifty-eight million, twenty-six thousand, two hundred eighty".