2566425191 has 16 divisors (see below), whose sum is σ = 2889945600. Its totient is φ = 2258578080.

The previous prime is 2566425163. The next prime is 2566425193. The reversal of 2566425191 is 1915246652.

2566425191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2566425191 - 2¹⁰ = 2566424167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566425193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65150 + ... + 96836.

It is an arithmetic number, because the mean of its divisors is an integer number (180621600).

Almost surely, 2^2566425191 is an apocalyptic number.

2566425191 is a deficient number, since it is larger than the sum of its proper divisors (323520409).

2566425191 is a wasteful number, since it uses less digits than its factorization.

2566425191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31934.

The product of its digits is 129600, while the sum is 41.

The square root of 2566425191 is about 50659.8972659835. The cubic root of 2566425191 is about 1369.1242722426.

The spelling of 2566425191 in words is "two billion, five hundred sixty-six million, four hundred twenty-five thousand, one hundred ninety-one".