2580255781 has 8 divisors (see below), whose sum is σ = 2606811584. Its totient is φ = 2553729120.

The previous prime is 2580255761. The next prime is 2580255809. The reversal of 2580255781 is 1875520852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2580255781 - 2¹⁵ = 2580223013 is a prime.

It is a super-2 number, since 2×2580255781² = 13315439790767839922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2580255731) 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, 200905 + ... + 213361.

It is an arithmetic number, because the mean of its divisors is an integer number (325851448).

Almost surely, 2^2580255781 is an apocalyptic number.

It is an amenable number.

2580255781 is a deficient number, since it is larger than the sum of its proper divisors (26555803).

2580255781 is a wasteful number, since it uses less digits than its factorization.

2580255781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14571.

The product of its (nonzero) digits is 224000, while the sum is 43.

The square root of 2580255781 is about 50796.2181761595. The cubic root of 2580255781 is about 1371.5792931669.

The spelling of 2580255781 in words is "two billion, five hundred eighty million, two hundred fifty-five thousand, seven hundred eighty-one".