2580557251 has 4 divisors (see below), whose sum is σ = 2607161032. Its totient is φ = 2553953472.

The previous prime is 2580557201. The next prime is 2580557299. The reversal of 2580557251 is 1527550852.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2580557251 - 2⁹ = 2580556739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2580557201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13301745 + ... + 13301938.

It is an arithmetic number, because the mean of its divisors is an integer number (651790258).

Almost surely, 2^2580557251 is an apocalyptic number.

2580557251 is a deficient number, since it is larger than the sum of its proper divisors (26603781).

2580557251 is an equidigital number, since it uses as much as digits as its factorization.

2580557251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26603780.

The product of its (nonzero) digits is 140000, while the sum is 40.

The square root of 2580557251 is about 50799.1855348095. The cubic root of 2580557251 is about 1371.6327082728.

The spelling of 2580557251 in words is "two billion, five hundred eighty million, five hundred fifty-seven thousand, two hundred fifty-one".