260525780 has 12 divisors (see below), whose sum is σ = 547104180. Its totient is φ = 104210304.

The previous prime is 260525753. The next prime is 260525791. The reversal of 260525780 is 87525062.

It can be written as a sum of positive squares in 2 ways, for example, as 49056016 + 211469764 = 7004^2 + 14542^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 260525780.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6513125 + ... + 6513164.

It is an arithmetic number, because the mean of its divisors is an integer number (45592015).

Almost surely, 2^260525780 is an apocalyptic number.

260525780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260525780 is an abundant number, since it is smaller than the sum of its proper divisors (286578400).

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

260525780 is a wasteful number, since it uses less digits than its factorization.

260525780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13026298 (or 13026296 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 260525780 is about 16140.8110081247. The cubic root of 260525780 is about 638.6803700893.

The spelling of 260525780 in words is "two hundred sixty million, five hundred twenty-five thousand, seven hundred eighty".